What are the chances of a waitlist clearing if Im booked on a S class from HKG-Mel on the 22 Jul. Ihave look through ITN. It seems that there are still plenty of seats on the classes higher than S. As I have to have the ticket issued on 31 May. I am wondering if I would be able to get seats on that flight. My Travel agent told me that he would get someone in CX office to "play" around the system. I wonder how true can that be.