航空订票系统就是用于顾客以及管理人员，所以程序开始只设计了顾客和管理人员两个入口多的我也不会。在顾客界面下，可以提供“显示所有航班信息”，“查询航班”，“订票”，“退票”等四个功能，其中“查询航班”又有若干种查询方式，比如‘按航班号’，‘按时间’，‘按目的地’，‘按价格等’；在管理员界面下，有“建立航班信息数据库”，“增加航班信息”，“删除航班信息”，“修改密码”等功能。退票是订票的逆操作，只需将bookinglist里的节点删除就行了。

　　设计管理员界面时，考虑到网上论坛等形式一般的管理员功能，管理员可以要求做到新航班的录入、删除，修改航班信息（如起飞时间，余票量等）

-Airline reservation system is for customers and managers, so the beginning of the program is designed only to customers and management of more than two I will not be imported. The customer interface to provide "all the flight information display, ""check flight","booking","refund" the four features, which "check flight" there are a number of query methods, such as　according to the flight number　,　by time , according to destination , by price　 in the administrator interface, the "establishment of flight information database"," more flights, ""delete flight information, ""Change password " and other functions . Refund is the inverse operation of booking, simply delete the node bookinglist in on the line.

Administrator interface design, taking into account the general form of online forums administrator, the administrator may request a new flight to do input, delete, modify flight information (such as departure time, more than the amount of tickets, etc.)