answer: Tina invites Sam to go skating with her and she can teach him.
documents: #Person1#: Good afternoon, Sam.
  #Person2#: Good afternoon, Tina.
  #Person1#: What are you going to do tomorrow?
  #Person2#: I'm not sure yet. And you?
  #Person1#: I would like to go skating. Feel like going with me?
  #Person2#: Is skating interesting?
  #Person1#: I think so. Fresh air, white snow. It's so comfortable.
  #Person2#: But I can't skate well.
  #Person1#: It doesn't matter, I can teach you.
  #Person2#: It's very kind of you.