I'm going to be flying on CX 889 tonight to Hong Kong, and I've been checking on seat availability for the past few days. I guess I really don't understand the system. It went from being totally booked, to having quite a few empty seats in J, and 1-2 in F, back to being totally booked as of this morning. Is CX just releasing "high revenue" seats at the last minute, and then these seats are being purchased, or what?