advance reservation

基本解釋

Advance reservation for Free Weekend Award stays is required. All Free Weekend Award reservations must be made directly through a Starwood Customer Contact Center.
免費周末假期必須預先訂房。所有免費周末假期必須直接透過喜達屋客戶服務中心訂房。
Since the 98 years of the first Jiuzhaigou winter tour since the year hot, especially during the Spring Festival, if not in advance reservation, simply can not guarantee housing travel team.
自98年首推九寨溝冬之旅以來，一年比一年火爆，特別是春節(jié)期間，若不提前訂房，根本就不能保證旅游團隊的住房。
In order to ensure privacy among the guests, please for half an hour in advance reservation.
為保證客人間的私密性，請您提前半小時預約。

Also, many negotiated rates have a drop dead date that requires your advance reservation to obtain the lowest rate.
FORBES: Why I Hate Travel Agencies