I purchased the tickets again due to the cancellation of the train leaving from Lucerne at 15:10 May 7 and the delay in arriving at the airport. The 15:10 train information says we will arrive at the airport at 17:18, but we will arrive at the closing time of the airline counter. Tickets cancelled for the 15:10 minute interval from Lucerne to the airport on May 7 will be requested for a refund. The original ticket ID are 804165185015 and 408592693374 and the new ticket ID are 111787980549 and 377341427100.