answer: Jack's mom asks Jack about his holiday. Jack won't be able to come back until the day after tomorrow due to fully-booked flights.
documents: #Person1#: Hello, Jack. Are you having a good holiday?
  #Person2#: Hi, mom, don't mention it. It has been raining every day since I got here.
  #Person1#: That's a pity and it's been nice and sunny here. When will you be home?
  #Person2#: I was going to be back tomorrow. But the flights are fully booked, the next available flight leaves on Thursday. So I have to be back the day after tomorrow. I just hope it won't snow before then.