At the check in counter
A: Can I have your ticket and passport please, Sir?
B: Yes, here you are.
A: Do you have any check-in luggage?
B: Yes, two pieces. They're heavy. I hope they're not overweight.
A: They're just under the maximum weight. Where would you like to sit, Sir?
B: A window seat if possible. And I forgot to ask before. Could I order a vegetarian meal, please?
A: One vegetarian meal. Ok, no problem. Have a good flight, Sir.