Since this is on the Dining Reservations page is this related to your other post that you cannot find a CG reservation before 9:30? CG is the most popular signature restaurant in Disney World so it is very difficult to book, but you can only make reservations online or by calling the dining line. They cannot be made by contacting CG. There will be cancellations when people's plans change so keep checking online frequently, subscribe to the cancellation thread for your month at the top of this forum or try the touring plans reservation finder.