How do I reset the slot value during the conversation

Please I’m having a problem with resetting the slot values back to null during the conversation. any idea on how I can do that?

You can add this as a custom action class ActionResetAllSlots(Action):

def name(self):
    return "action_reset_all_slots"

def run(self, dispatcher, tracker, domain):
    return [AllSlotsReset()]

after adding this in your story/rule all slots will get reset after this