Q. What would you do if someone occupied your seat and he/she doesn’t want to
transfer seats?
A. I will call the flight residents. This is an obvious thing. If I paid for the seat, then I have the right to sit in the seat that I reserved.
I don't want to argue with someone who is being illogical. The only thing I should do is to follow the airline's instructions.
So, I will let flight residents know this situation and ask them to take appropriate action.

You rock !! Keep up the good work, June !