should I make prior reservation for air asia flight on Jan 28 from bangkok to krabi rather than purchasing on the same day at the ticket counter because this is the high season? Since there is a chance that my international flight to bangkok may be delayed, that I may not be able to make the reserved flight. Also, there are four flights scheduled that day for krabi so I am thinking there should be seats avail. Do you think I should make the reservation instead for the last flight of the day?