Is anyone able to help me talk through the question below?

Has a bailment been created when a traveler parks his or her car and keeps the car keys prior to departing on a flight from JFK Airport in New York City? Has a bailment been created when a malfunctioning stoplight on the way to JFK Airport in New York City causes a traveler to be so late for his or her flight that the traveler gives the car keys to a JFK Airport valet and has the valet park the car and retain the keys until the traveler returns from the trip? Explain your answers.