Form Logics

I am new to Rasa and I have learned some tutorials. I would like to use Forms to ask several questions to define the severities of certain illnesses. Not all the questions are required to be answered for a definition. How should I do that? How should I write stories properly so that the bot can continue on different dialog flows correctly? Thank you.

Hey @SteveLee

I’d love to help! Maybe you can describe two-three concrete examples of dialogs, and we can start from there?