航线分为国内航线、国际航线、地区航线。

It is a （ ）flight from NNG to PVG

（ ）is short for General declaration.

C: What kind of seat do you prefer? P：( )

We＇re so sorry，your flight has been （ ）due to bad weather.

My English is （ ）, Can you speak slowly ?

Would you like to check in your luggage （ ）to final destination？

A: I would like to get boarding pass for today＇s flight to Bangkok. B: May I have your （ ）please？

Do you want to （ ）the flight to Peking?

Seats are （ ）on CA1496 on November 22.

C: What is your flight number? P：（ ）