How to avoid that two slots are filled by the same intent

Rasa Open Source
1

I have been struggling with something that is supposed to be simple, but I am stuck here. I have a form that is collecting some data from the customer. My problem is that, during the form filling, there is a time that a question is asked which the response can be an affirm or deny. But the same intent triggers another slot and it is filled as well. I tried to avoid the problem by establishing a request_slot condition, but it did not work.

rules:
  - rule: Activate health insurance form
    steps:
      - intent: greet
      - action: utter_greet
      - action: health_insurance_form
      - active_loop: health_insurance_form
      
  - rule: Submit form
    condition:
      - active_loop: health_insurance_form
    steps:
      - slot_was_set:
          - requested_slot: null
      - action: health_insurance_form
      - active_loop: null
      - action: action_validate_and_clean_data
      - action: utter_confirm_data
      - action: action_save_user_datatype or paste code here

Slots:

  cnpj:
    type: text
    mappings:
    - type: from_intent
      intent: affirm
      value: Yes
    - type: from_intent
      intent: deny
      value: No
      conditions:
      - active_loop: health_insurance_form
        requested_slot: cnpj
  confirmation:
    type: text
    influence_conversation: false
    mappings:
    - type: from_intent
      intent: affirm
      value: Yes
    - type: from_intent
      intent: deny
      value: No
      conditions:
      - active_loop: health_insurance_form
        requested_slot: confirmation