如果有旅客取消航班订位，对于空出的位置，在等待清单上的旅客有优先权。
If there are cancellations on the flight, the passenger on the waiting list will get preference for the space that has become available.
如果有旅客取消航班订位，对于空出的位置，在等待清单上的旅客有优先权。
If there are cancellations on the flight, the passenger on the waiting list will get preference for the space that has become available.
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