(1)录入航班信息（航班数据可以先存储在一个数据文件中，数据结构、具体数据大家自定）；

(2)查询某个航线的信息（如，输入航班号，查询起降时间、起飞城市、沿途经过的城市及最终抵达的城市，航班票价，票价折扣，确定航班是否满仓，有多少剩余票。又如输入起飞城市或抵达城市，查询飞机航班情况）；

(3)修改航班信息，当航班信息改变时，应该修改航班数据文件。

(4)完成订票操作（订票情况可以存在一个数据文件中，结构自己设定），如果该航班已经无票，可以提供相关的、可供选择的其他航班信息供用户选择；

(5)完成退票操作，退票后修改相关数据文件；

-(1) entry flight information (flight data can be stored in a data file, data structure, all self-specific data)　

(2) query to a route information (such as, enter the flight number, query time take-offs and landings, take-off city, passes through the city and finally arrived in the city, flight fares, discount fares to determine whether Mancang flights, the number of remaining votes. Another example is the importation of take-off city or arrival city, flight inquiries situation)　

(3) amend the flight information, flight information when changes in flight data files should be amended.

(4) complete the booking operations (there is a booking can be data files, the structure of their set), if the flight has been no vote, can provide relevant, other options for the user to choose flight information　

(5) complete refund operations after refunds to amend the relevant data files