What is a chatbot and how are they used in business?

 Chatbots (chatterbots) are software agents designed to simulate a conversation with one or more human users via textual or auditory methods.  They try to understand what you type or say and respond by answering questions or executing tasks. Chatbots are typically used in systems for customer service or information acquisition.  For example, Facebook has integrated chatbots into its Messenger messaging app, so that any outside company with a Facebook brand page can interact with Facebook users through the chat program.  A Facebook user could, for example, browse for a pair of lightweight running shoes on Messenger by texting a message to begin a conversation with Spring, a mobile shopping app.  Spring would ask the user for his or her preferred price range for the shoes and display small selections of what it thinks the user might like.

Tremendous help, I just double-checked it with my friend