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A book having tickets authorizing a specified amount of travel or a specified number of trips between designated points is used especially for commuter travel.
Ticketing and booking are two separate processes. Booking just holds the seat on the plane. Ticketing means that the seat is paid for and the passenger has the right to take it during the flight
-First Class Ticket.
-Business Class Ticket.
There are four fare classes of service—first, business, economy plus, and economy/coach.