answer: #Person1# stops #Person2# from boarding because #Person2# shows a passport without a boarding pass. #Person2# is anxious.
documents: #Person1#: Good morning, sir. Can I see your boarding pass, please?
  #Person2#: Here you are.
  #Person1#: Excuse me, sir. This is your passport.
  #Person2#: Really? Ugh. . . Is there any difference?
  #Person1#: Yes. As a matter of fact, you can't board the plane without boarding pass.
  #Person2#: Gee. I must have left it in my hotel room.
  #Person1#: I'm sorry sir. I can't let you pass.
  #Person2#: But when does the plane take off?
  #Person1#: Ugh, in about thirty minutes, sir.
  #Person2#: Oh, my God! What do I do now? Bone head.
  #Person1#: Calm down, sir. You are creating a commotion.
  #Person2#: Is that me?
  #Person1#: Could be.
  #Person2#: Oh, thank God. Thank you, I'll be right back.