answer: #Person1# invites Christina for dinner but Christina will go to the airport tonight. #Person1# then invites her to the coffee shop but she's heading to the tennis court. #Person1# lets #Person2# give #Person1# a call when comes back.
documents: #Person1#: Oh, Christina, is that you? How have you been?
  #Person2#: I've been okay. I've just been busy with school. We really should get together and have a chat. How about joining me for dinner tonight?
  #Person1#: I'd love to, but I'm leaving for Miami at 8 tonight because my brother is getting married on Saturday morning.
  #Person2#: Congratulations! I hope that you have a nice time there.
  #Person1#: Well, what are you doing now? Maybe we can go to the coffee shop and chat for a while.
  #Person2#: I really wish I could, but I'm on my way to the tennis courts.
  #Person1#: Tennis courts? I didn't know you could play tennis.
  #Person2#: I'm taking tennis lessons. My roommate is on a tennis team and she's gotten me interested in the sport. Do you know how to play?
  #Person1#: A little, but I haven't played for years. When I come back from my trip, I'll join you in taking lessons.
  #Person2#: It's a deal. Just give me a call when you get back.
  #Person1#: You got it.