A：Is this the right counter to check in for this flight?B：————————A：Here you are. Oh, I'd like an aisle seat please.B：One moment, please.

A、Yes,
your passport and ticket please.;

B、Yes. What kind of seat do you want?;

C、Yes. How many bags do you have to check in?;

D、No, the counter for your flight is over there.