@mmm3bbb Have you tried to utter a template in your action file where your form actions being handled? For example :
def submit(
self,
dispatcher: CollectingDispatcher,
tracker: Tracker,
domain: Dict[Text,Any],
) -> List[Dict]:
dispatcher.utter_template("utter_all_done", tracker)
return []
Above code will utter the template “utter_all_done” at the end of the form. Just try it and tell