A: This is the arrival lounge.
B: I know. Where is the departure lounge?
A: Come. Follow me.
B: There! The check-in counters are over there.
A: Don't we have to go pay the airport tax first?
B: No. We pay it after we check in.
A: Good morning. May I have your passport, please?
B: Here you are.
A: Smoking or non-smoking?
A: Aisle or window seat?
B: Window seat, please.
A: Do you have any luggage to check in?
B: Yes. This is my carry-on luggage and I'll check in these two suitcases.