Just a quick question, I want to drop my bag in airport express Kowloon station, I don’t care about the boarding pass since I can get it in airport, can I drop the bag before 4pm July 24th for the flight CX840 HkG to JFK depart on July 25th 4:05pm? I know They won’t issue any boarding pass until 24hrs from departure, but can I still drop the bag?