answer: Wang Lin calls Star Airlines to confirm a reservation. Wang is leaving on July 21st alone, by KF98.
documents: #Person1#: Good morning, Star Airline. What can I do for you?
  #Person2#: I'd like to confirm a reservation, please. My name is Wang Lin. My flight is KF98.
  #Person1#: I see. You are leaving for Berlin on July 23rd with Mr. Smith, right?
  #Person2#: What? I am afraid you have made a mistake, I am leaving on July 21st alone.
  #Person1#: Isn't your family name Lin?
  #Person2#: No. It is Wang.
  #Person1#: I am sonry. So you are loaving on Duty 21st and your seat is in the business section.
  #Person2#: That's right. Thank you.