A small commuter airline is concerned about reservation no-shows and, correspondingly, how much they should overbook flights to compensate. Assume their commuter planes will hold 13 people. Industry research indicates that 30% of people making a reservation will not show up for a flight. Whether or not one person takes the flight is considered to be independent of other persons holding reservations. If the airline decided to book 19, what is the probability that at least one person will not get a seat? Round your answer to four decimal places