remove story without 'form: '
-## Generated Story 6616794937268014982
-* request_restaurant
- - restaurant_form
- - form{"name": "restaurant_form"}
- - slot{"requested_slot": "cuisine"}
-* chitchat
- - utter_chitchat
- - restaurant_form
- - slot{"requested_slot": "cuisine"}
-* inform{"cuisine": "1"}
- - slot{"cuisine": "1"}
- - restaurant_form
- - slot{"cuisine": "1"}
- - slot{"requested_slot": "num_people"}
-* inform{"num_people": "1"}
- - slot{"num_people": "1"}
- - restaurant_form
- - slot{"num_people": "1"}
- - slot{"requested_slot": null}
- - form{"name": null}
-* thank
- - utter_noworries
-
## Generated Story -9155310465400161964
* request_restaurant
- restaurant_form
- slot{"requested_slot": null}
* thank
- utter_noworries
-
