M: We want to take a train to New York.
W: Regular or express train?
M: How much time would we save if we took the express?
W: About one hour, the next express train arrives in New York at 3:15.
M: And how much more do we have to pay for the express?
W: First class is 24 dollars more, and second class is 15 dollars more.
M: As long as we arrive one hour earlier, I don't mind paying a little extra. Then give me two second-class tickets on the express, pls.
