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: The minimum age requirement for most car rental companies is 21 years old; however, some may allow customers who are 18 years old to rent a car. Generally, customers must present a valid driver's license, credit card and proof of insurance when renting a car. Some rental car companies may also require customers to hold a minimum number of years of driving experience. In some cases, an additional deposit may be required.
chosen: assistant
rejected: How old do you have to be to rent a car?
rejected: user
rejected: assistant