This document discusses building conversational user interfaces (UIs) using chatbots. It begins with an agenda that outlines thinking about conversational UIs, chatbots and their real-world uses cases, and intelligent mobile apps. The document then provides a brief history of chatbots including ELIZA from the 1960s. It explores bot communication platforms, Microsoft offerings like the Microsoft Bot Framework, and how to build a first bot using a retrieval model and publish it to Azure. Key concepts discussed include bot connectors, bot architectures using retrieval, natural language, and deep learning approaches, dialogs, form flows, and Microsoft's Azure Bot as a Service.