Something like this would do the On part with a question.
But if you also want to ask If it should be turned OFF, then you would first need to split this flow into 2 other flows and create 2 more, total of 4 flows would be needed at least.
I can make some examples but first need to know your input methods.
This is why i created H.O.O.P. (Hope) - Homey Object Oriented Programming
With H.O.O.P. you can create this flow:
