No-code introduction to Dialogflow
This is a course bundle which is suitable for non-programmers who are getting started with Dialogflow and don't want to write any code.
It includes the following courses:
Dialogflow Building Blocks
Dialogflow Conversation Design
By combining the material in these courses, you will be able to design (create the flowchart) and implement basic Dialogflow chatbots.
The Dialogflow Building Blocks, at the very end, has a section on "Webhooks" which requires some programming knowledge. It is optional, and you can omit it if you want.