I want to set up a rule to be triggered 2 hours after the user's Last Interaction.

But there is no option for "Last Interaction" in Date/Time-based trigger.

Right now, if I am asking for the user's phone number of any other user input, and if the user doesn't provide that information and comes back after 7days regarding something else that User Input still remains pending. So, I want to make a rule to prevent that instead of placing a Delay after every User Input plugin. But I am unable to do it because currently, there is no option of "Last Interaction" in Date & Time-based trigger.