Building a conversational bot is a bit like your first day coding a console app. The first few things you write are the typical 'hello world' and next the 'echo bot' that will repeat anything you enter.
Building more complex user experiences beyond that is a bit of a learning curve! There is the whole concept of managing who's turn it is in the conversation. Handling state in a sequence of questions to complete a 'dialog'.
Feeling reasonably comfortable now.