Google just rejected my app that I'd built using API AI. Following is the feedback from Google team:
Please either close the mic after app delivers its functionality, or prompt the user to either ask again or cancel.
Does anyone know how to prompt the user/ask again/cancel?
Thanks
To end the conversation you can either use the client library "tell" method in fulfillment or you can use the "End conversation" Actions on Google option at the bottom of the intent settings in API.AI.