Originally Posted by
ernestnywang
Do note that although your KHH-HKG and HKG-MEL flights have different booking classes, they are still married segments, so you need to look for married segments' availability. If you cannot get B+R on CX's website, likely it is not available.
Oh, thanks for your suggestion! This may explain why the agent couldn't do it for me. Then the question is, can I just show up in KHH to standby for an earlier KHH-HKG flight in the day without changing the ticket in advance (and without affecting my HKG-MEL that evening)?