answer: #Person2# and #Person1# think the waitress has done a great job. So they give more tips than usual.
documents: #Person1#: Would you like some more coffee?
  #Person2#: No thanks. I'm full. We need to find our waitress and get our bill.
  #Person1#: The waitress is bringing the bill right now.
  #Person2#: This waitress has really been on top of things, hasn't she?
  #Person1#: Yes, this waitress did a great job.
  #Person2#: OK, let's see what the damage is. The total for our meal is $ 36.00.
  #Person1#: What do you think would be the right amount to leave for a tip?
  #Person2#: Fifteen percent is a normal tip, but she really did a great job. What do you think about 20 % this time?
  #Person1#: Yes, 20 % would be perfect.
  #Person2#: Her tip will end up being $ 7.20 plus the bill of $ 36.00. The total will be $ 43.20.
  #Person1#: Yes, that was one fantastic meal!
  #Person2#: I agree. Maybe we can come back again next week.