要求：假定民航机场共有n个航班，每个航班有一航班号，确定的航线(起始站、终点站)、确定的飞行时间(星期几)和一定的成员定额，设计一民航订票系统，使之能提供下列服务：

1：航班信息录入功能(航班信-Located in Daxing Economic Development Zone, Beijing, China, Beijing Yashilin Testing Equipment Co., Ltd. (hereinafter referred to as “Yashilin”)specializes in manufacturing environment and reliability testing equipment. Having rich experience in the ring test industry ...