answer: #Person1# helps #Person2# check in and select a seat by the emergency exits. #Person2# has a piece of luggage that is small enough to carry on.
documents: #Person1#: Hello. Where are you heading today?
  #Person2#: I'm off to Barcelona for a week.
  #Person1#: Do you have your passport with you?
  #Person2#: Yes, here you are. I don't need a visa to go to Spain, do I?
  #Person1#: Fortunately for you, you don't. Would you like a window seat or an aisle seat?
  #Person2#: Are there any seat available by the emergency exits?
  #Person1#: Let me see here ...Yes, there's one left.
  #Person2#: OK. I'll take that one then.
  #Person1#: Alright. How many pieces of luggage are you checking in?
  #Person2#: I like to travel light so I just have this one.
  #Person1#: If that's your only piece of luggage, it is small enough to carry on with you.
  #Person2#: That's a fantastic idea. Which gate do I need to go to?
  #Person1#: You're here a bit early, so check the departure screens in the waiting area in about half an hour. Here's your boarding pass. Enjoy your flight!