Hello ! This is Air China Booking Office .   Hello ! I'd like to reconfirm my flight reservation .   May I know your flight number , please ?   It's flight CA169 , which leaves Beijing at 8: 00 a . m . on January 20th .   Oh , yes . That's our regular flight to Nanchang . Would you please tell me your name ?   My name is Deng Li .   Yes , here you are . You're flying in economy class . Is that right ?   Oh , no . I'm sure I made a reservation for a first-class ticket .   Let me check . Now , your ticket is in order . Thank you for calling to reconfirm .   That's what I should do . And I don't want to lose it .   Quite right . If you don't confirm , the reservation will be cancelled 72 hours before the departure time . In order not to miss your flight , I think you should pick up your ticket as early as possible . 