How to utter_ask_<slot_name> again when the entity extracted failed and slot was not filled?

Rasa Open Source
1

when the entity extracted failed and the slot was not filled, it seems that it goes into an unhappy path, how to simply ignore the unhappy path and utter_ask_<slot_name> again?

for example：

my form has a slot with name “start time”

start_time:
  - type: from_entity
      entity: time

utter_ask_start_time:
- text: |
    can you tell me the start time?

when the user inputs something the EntityExtractor cannot extract the time, how to make the robot utter_ask_start_time again?

2

hi @WestonLu,

you can achieve this with a custom action for your form.

3

thank u for your reply. In this topic how-to-deactivate-a-form-during-validation , a professor said “Your validate action can return ActiveLoop(None) event to deactivate the form.”, but it seems that validate_<slotname> function can just return a dic which includes the slot name and value.

May I ask how can I deactivate the form in my validate_<slotname> function? Thank you.

4

Does this help?