answer: #Person1# is asking Joseph about Susan. Matt. Susan is #Person2#'s friend, and she is a lawyer, and #Person2#'s sister knows Matt.
documents: #Person1#: Joseph, who is that woman? 
  #Person2#: That's Susan. 
  #Person1#: What does she do for work? 
  #Person2#: She's a lawyer. 
  #Person1#: Is she American? 
  #Person2#: No, but she speaks English fluently. 
  #Person1#: She's really tall. Do you know her? 
  #Person2#: Yes, I know her. We're friends. 
  #Person1#: Who's that man standing next to her? 
  #Person2#: Which man? 
  #Person1#: That short guy on her right. What's his name? 
  #Person2#: Oh, that's Matt. 
  #Person1#: He's really good looking. 
  #Person2#: Yeah. 
  #Person1#: Do you know him? 
  #Person2#: I don't know him, but I think my sister does. 
  #Person1#: Is he married? 
  #Person2#: Yes, he's married. 
  #Person1#: I remember now. I met him before.