answer: Mary tells #Person1# she feels upset because of an argument with her friend.
documents: #Person1#: Hello, Mary. What's the matter with you? You look upset.
  #Person2#: My friend and I was argued with each other. For this, I'm very sad. Because I don't want to lose this friend.
  #Person1#: Oh, I'm sorry to hear that. I know how you feel. Please don't be sad.
  #Person2#: Thank you, but I really want to relax myself. I'm very sorry.
  #Person1#: OK. Don't let it get to you. Goodbye.