Question: answer should be handwritten and the ER MODEL should be complete Design an E-R diagram for a database for an airlines system. The database must

answer should be handwritten and the ER MODEL should be complete Design an E-R diagram for a database for an airlines system. The database must keep track of customers and their reservations, flights and their status' seat assignments on individual flights and the schedule and routing of future flights. Apply all the database design constraints as much as possible

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