Originally Posted by slippahs

Just for clarification purposes, how would it be any different for an interisland ticket? For any ticket, one cannot transfer the ticket to another once booked under that person's name. The only thing to do is to cancel the ticket for that person (or request a refund for a refundable ticket) and use that ticket for the ticket nameholder at a later date before the ticket expires. Then you'd have to book a new ticket in another person's name for the new traveler.