Because some of this loss is attributable to airline passengers or hotel guests who don't take up their reservations,most businesses <overbook>their services on the basis of the average number of seats that have not been claimed in the past.
부탁드립니다.
자세한 해석이 필요합니다.아이가 묻는데 제가 문법이 약해 버벅대네요.