酒店招待：那就抱歉了。如果没有预订，我们没法向您提供服务。我们的客人为了这特别的时刻两个星期以前就预订了。
Caterer: I'm very sorry, but without an order there's nothing we can do. Our guests have to make reservations two weeks in advance for this special occasion.
如果该数据库没有代理主服务器，那么主服务器将会开始像往常一样处理预订请求。
If there is no acting primary server for that database, then the primary server will begin processing reservation requests as it normally does.
在您尝试客房预订工作流之前，您需要建立PostgreSQL数据库，然后填充样例数据，如果还没有这样做。
Before you can try the room-booking workflow, you need to set up your PostgreSQL database and populate it with sample data, if you haven't done so already.
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