We will probably book our resort reservation before flights are released, but we have very specific flight times in mind and not sure if we'll get them or not. If we don't get want we're hoping for, our travel dates will change (late evening vs early morning next day). My question is: should we make the reservation with the night before date, hoping we'll get that flight? I've been told it's easy to change a reservation (we should be well ahead of the deadline to make changes), but is it any easier to add a day versus delete a day? Does it matter?