The verb " wait-listed" (wait) (listed) – " to be wait-listed" means they put you on a list and you have to wait to see if you can get on at a particular flight if there's room.

动词“wait-listed” （等待）（listed）——“to be wait-listed” 意思是他们把你放在一个名单上， 你必须等着看你是否可以在有空位的特定航班上登机。