I booked a while ago an award SFO-HND-BKK in F/J. F has been dropped from the SFO-HND segment so JL automatically moved me to SFO-NRT to retain F (very kind of them), but obviously I can't do the airport transfer as a foreigner. There is no award availability on NRT-BKK on my date of travel, what are the chances AS would be able to ask JL to open up a spot to move me to that flight?