Certainly for Facebook, this is much more about extracting marketing dollars than it is about breaking new ground in software development. Because by studying user’s interactions with these bots, Facebook will continue to build their understanding of how consumers are interacting with brands and gain additional insight into what products they like and content they consume. That can only mean more value to marketers and thus more dollars for Facebook.
ELIZA's key method of operation (copied by chatbot designers ever since) involves the recognition of clue words or phrases in the input, and the output of corresponding pre-prepared or pre-programmed responses that can move the conversation forward in an apparently meaningful way (e.g. by responding to any input that contains the word 'MOTHER' with 'TELL ME MORE ABOUT YOUR FAMILY'). Thus an illusion of understanding is generated, even though the processing involved has been merely superficial. ELIZA showed that such an illusion is surprisingly easy to generate, because human judges are so ready to give the benefit of the doubt when conversational responses are capable of being interpreted as "intelligent".
^ "From Russia With Love" (PDF). Retrieved 2007-12-09. Psychologist and Scientific American: Mind contributing editor Robert Epstein reports how he was initially fooled by a chatterbot posing as an attractive girl in a personal ad he answered on a dating website. In the ad, the girl portrayed herself as being in Southern California and then soon revealed, in poor English, that she was actually in Russia. He became suspicious after a couple of months of email exchanges, sent her an email test of gibberish, and she still replied in general terms. The dating website is not named. Scientific American: Mind, October–November 2007, page 16–17, "From Russia With Love: How I got fooled (and somewhat humiliated) by a computer". Also available online.
A chatbot is a computer program which conducts a conversation via auditory or textual methods. Such programs are often designed to convincingly simulate how a human would behave as a conversational partner, although as of 2019, they are far short of being able to pass the Turing test. Chatbots are typically used in dialog systems for various practical purposes including customer service or information acquisition. Some chatbots use sophisticated natural language processing systems, but many simpler ones scan for keywords within the input, then pull a reply with the most matching keywords, or the most similar wording pattern, from a database.
The process of building, testing and deploying chatbots can be done on cloud-based chatbot development platforms offered by cloud Platform as a Service (PaaS) providers such as Oracle Cloud Platform  and IBM Watson. These cloud platforms provide Natural Language Processing, Artificial Intelligence and Mobile Backend as a Service for chatbot development.
Since 2016 when Facebook allows businesses to deliver automated customer support, e-commerce guidance, content and interactive experiences through chatbots, a large variety of chatbots for Facebook Messenger platform were developed. In 2016, Russia-based Tochka Bank launched the world's first Facebook bot for a range of financial services, in particularly including a possibility of making payments.  In July 2016, Barclays Africa also launched a Facebook chatbot, making it the first bank to do so in Africa. 
The “stand-alone” application, where the chatbot runs on a single computer, integrates mostly some sort of system interface, allowing your chatbot to control certain aspects and functions of your computer, such as playing media files, or retrieving documents. It usually also has a graphical component built in, as well, in the form of an avatar (often female) that enhances interaction, thus improving user’s experience.
Marketer’s Take: If you operate a takeout business or if you want to be the next Domino’s Pizza food delivery service, then Burger King offers an excellent example of how a simple bot can take food or product orders without the need for an expensive mobile app. Its second generation bot will most likely start to predict when you’re hungry and offer discounts on your favorite food order if you purchase in the next 30 minutes. So much for that lean body you’ve always wanted to maintain.
There are lots of free chatbot building tools such as the one I run that offer the ability to setup a bot and connect it to facebook. You won’t require any coding knowledge, and you can sign up using your Facebook account. Once you’ve set up a free account you can start creating your chatbot. Make sure you keep these tips in mind when building your bot:
If a text-sending algorithm can pass itself off as a human instead of a chatbot, its message would be more credible. Therefore, human-seeming chatbots with well-crafted online identities could start scattering fake news that seem plausible, for instance making false claims during a presidential election. With enough chatbots, it might be even possible to achieve artificial social proof.
Smooch acts as more of a chatbot connector that bridges your business apps, (ex: Slack and ZenDesk) with your everyday messenger apps (ex: Facebook Messenger, WeChat, etc.) It links these two together by sending all of your Messenger chat notifications straight to your business apps, which streamlines your conversations into just one application. In the end, this can result in smoother automated workflows and communications across teams. These same connectors also allow you to create chatbots which will respond to your customer chats…. boom!
The main challenge is in teaching a chatbot to understand the language of your customers. In every business, customers express themselves differently and each group of a target audience speaks its own way. The language is influenced by advertising campaigns on the market, the political situation in the country, releases of new services and products from Google, Apple and Pepsi among others. The way people speak depends on their city, mood, weather and moon phase. An important role in the communication of the business with customers may have the release of the film Star Wars, for example. That’s why training a chatbot to understand correctly everything the user types requires a lot of efforts.
Used by marketers to script sequnces of messages, very similar to an Autoresponder sequence. Such sequences can be triggered by user opt-in or the use of keywords within user interactions. After a trigger occurs a sequnce of messages is delivered until the next anticipated user response. Each user response is used in the decision tree to help the chat bot navigate the response sequnces to deliver the correct response message.
Enter Roof Ai, a chatbot that helps real-estate marketers to automate interacting with potential leads and lead assignment via social media. The bot identifies potential leads via Facebook, then responds almost instantaneously in a friendly, helpful, and conversational tone that closely resembles that of a real person. Based on user input, Roof Ai prompts potential leads to provide a little more information, before automatically assigning the lead to a sales agent.
Fast food just got faster. With Burger King’s new bot, simply order and pick up on demand. Simply choose menu items and pick the closest restaurant to pick it up. The bot then provides an estimated time and price. The bot is not available yet, but you can see from the demo, how it will work. It probably won’t tell you the calorie counts per menu item, but you can bet this bot will be programmed to inflate food sales.
ItsAlive provides a platform to easily build chatbots and services for brands by facilitating with your customer care, broadcasting, acquisition and brand awareness. Choose across platforms and services you think the best suit your brand image. “A Chatbot that can’t evolve with your needs doesn’t make sense. We have solutions to communicate challenges, and you choose the options”. ItsAlive is out with a 2.0 version that you can give a shot.
Human touch. Chatbots, providing an interface similar to human-to-human interaction, are more intuitive and so less difficult to use than a standard banking mobile application. They doesn't require any additional software installation and are more adaptive as able to be personalized during the exploitation by the means of machine learning. Chatbots are instant and so much faster that phone calls, shown to be considered as tedious in some studies. Then they satisfy both speed and personalization requirement while interacting with a bank.
HealthTap helps you get answers for your health queries from physicians around the world, for free. You can browse through and read answers for similar queries as yours. Over 100,000 physicians with different specialities regularly review and post answers to the questions asked on HealthTap. So, the next time you’re down with headache after texting the entire night on Messenger, you know who to ping next.