How to detect no response from user and give a reply?

Rasa Open Source
2

There are two ways to solve it,

  1. Use custom action where you use timedelta of datetime module to get time difference and send a response if timedelta threshold is more than 4 sec. You need to trigger it using stories or rules.

  2. If you have your own custom frontend, you can do the same inspite of sending to rasa.