prompt: How old do you have to be to rent a car?
chosen: How old do you have to be to rent a car?
chosen: user
chosen: In the United States, the minimum age for renting a car is usually 21 years old, though some rentals may require individuals to be 25 years old or more.
chosen: assistant
rejected: How old do you have to be to rent a car?
rejected: user
rejected: assistant