: Ticket (билет), boarding pass (посадочный талон), check-in desk (стойка регистрации).
Finding a traditional "GDZ" (ready-made homework answers) for specialized textbooks like is difficult because these are professional university or college-level materials rather than standard school textbooks.
(by N.E. Koroleva, E.Z. Barseguyan, & A.M. Serbinovskaya): A comprehensive manual covering hospitality and travel business vocabulary.