book something in advance

It must be booked in advance and is limited to 12 people.

Yes, of course, she knew that Mark was booked a month in advance.

Treatments should be booked at least two weeks in advance.

Groups of up to 60 people are welcome, provided they book well in advance.

The event costs £12.50 and must be booked in advance.

Book the whole lot in advance with this short trip.

"Next time we'll book the auditorium six months in advance."

And at times he's been booked six weeks in advance.

You have to book a reservation a year in advance for that one.

Should we book in advance or it is ok to go straight to the pier?