answer: #Person1# and #Person2# are satisfied with the service of the restaurant so they decide to leave 20% of the check for a tip.
documents: #Person1#: Do you want some dessert?
  #Person2#: No thanks. We just need our check. Have you seen the waitress?
  #Person1#: Oh, here comes our waitress with our check.
  #Person2#: The service here has been really great, don't you think?
  #Person1#: Yes, the service was quite good.
  #Person2#: So, let's look at the check. The total is $ 36. 00.
  #Person1#: How much do you think we should leave for a tip?
  #Person2#: Usually people leave 15 %, but this was exceptional service. I am thinking that maybe 20 % would be appropriate.
  #Person1#: I agree that 20 % would be just about right.
  #Person2#: OK, so that will bring her tip to $ 7. 20. Add it to the $ 36. 00 and the total is $ 43. 20.
  #Person1#: Yes, what a nice dinner that was!
  #Person2#: We'll have to make sure to come back here again real soon.