answer: #Person1# lost keys and asks #Person2# for help. #Person2# finds keys, and #Person1# is grateful.
documents: #Person1#: Excuse me, did you see a set of keys? 
  #Person2#: What kind of keys? 
  #Person1#: Five keys and a small FooWa ornament. 
  #Person2#: What a shame! I didn't see them. 
  #Person1#: Well, can you help me look for it? That's my first time here. 
  #Person2#: Sure. It's my pleasure. I'd like to help you look for the missing keys. 
  #Person1#: It's very kind of you. 
  #Person2#: It's not a big deal. Hey, I found them. 
  #Person1#: Oh, thank God! I don't know how to thank you, guys. 
  #Person2#: You're welcome.