Two trip ticket and fast pass question

I have two trips planned for this fall within 60 days of each other going to 2 different conventions. I am staying on site. I want to make sure that when I go to the first convention and I go to the parks that the correct tickets are used at the gate. So thinking I will assign one set of tickets to someone else in my Family and Friends list on MDE that are not going with me to either convention. My question is ā€“ since I will have picked my FP+ for both tickets will the FP+ transfer with the tickets when I reassign it after I get home from the first convention? Iā€™m not going long enough on the trips for an AP to be worth buying.