A Microsoft Mechanics episode that I found very interesting discussing Microsoft Power Virtual Agents showing you an example of a finished interactive bot application and then how to build it.
If you are new to Power Virtual Agents, it's Microsoft's newest member of the Power Platform. The Power Platform is Microsoft's family of tools for low-to-zero-code modern app development, process automation, business insights, and now – chatbots. Interested in testing it out for yourself? Go to powervirtualagents.microsoft.com