Inteaction with user through email in playbook

Hi, 

I need to achiveve this:

On rule detection, playbook should execute that will execute below block in loop.

*Send email to user -- > wait for response -> If user happy --> Close the case OR if user not happy/ needs further information, again repeat *Send email to user step.

Please suggest how this can be achieved in soar playbook. OR if this is not feasible, what's the fallback ?

Thanks