Passenger is a time travel story about a young girl named Etta, who is a violin prodigy living in New York City. Etta feels pressure from both her mother and teacher to be perfect and exhibits her talent throughout the beginning of the story, but readers can relate to her scenario of having to sound perfect all the time (I say "sound", because she is a violin player, after all).
Keeping a plane at the gate may be the ultimate way to say, "We care." It requires that an employee ignore years of training and be willing to face real consequences on an upcoming performance review. The message is unmistakable: You're important to us.