answer: #Person1# takes the taxi in a hurry. #Person1# pays and tells #Person2# to keep the change.
documents: #Person1#: Taxi.
  #Person2#: Get on, PLS. Where do you wanna go?
  #Person1#: Thank you. Pls hurry, I am late. Can I get to the Battery Park before 4?
  #Person2#: All right, Miss. I think we will get there if there are no delays on the way.
  #Person1#: How exactly do you figure out the car fare?
  #Person2#: According to the kilometer rate, the first five kilometers are 4 dollars and every kilometer extra costs 50 cents.
  #Person1#: Oh, I see.
  #Person2#: Here we are, Miss.
  #Person1#: Thank you. How much do I owe you?
  #Person2#: You owe me 19 dollars.
  #Person1#: That's 20 dollars. Keep the change!
  #Person2#: Thank you!