航空订票系统（Airline Reservation System）的设计针对于国内航空预订票和管理情况，包含网上预订票、营业点取票、营业点买票、订票管理、网上退票、营业点退票（即订票、退票、查询、管理）等业务。-Airline reservation systems (Airline Reservation System) is designed for domestic air ticket booking and management, including online ticket bo