Looking for LAX-HKG-SIN in J for late this year. AA, JL, and QF all show availability (JL shows 4 seats), but I’ve called AS twice and the agents have been unable to find anything (I asked them to search origin to destination, not by leg). One agent mentioned that what AS sees matches most closely with BA, so I went to check BA after the call, and there are no seats available.

Any idea as to what’s going on here? Could AA, JL, and QF all be showing phantom space? Thanks.