体育中心的数据库设计 - 管理预订

I need to design a database to manage reservations of installations in a system with several sports centers. The centers have different installations like swimming pools, tennis courts, basketball courts, etc. In a center maybe there are more than one swimming pool or tennis court and so on. And they can have different availabilities. For example "Swimming pool 1" and "Swimming pool 2" in "Center 1" are available Mondays, Wednesdays and Fridays from 9:00 to 10:00 and from 12:00 to 13:00. "Swimming pool 2" is also available Tuesdays and Thursdays from 08:00 to 09:00 and from 09:00 to 10:00. I can also add excluding dates (like holidays), for example Friday 12/25/2015 and Friday 01/01/2016. Then members can book and installation if is still available.I need to design a database to manage reservati