Baobao - I think the next wedding show is sometime during june/july..I signed up during the june/july wedding show last year..you may want to check with hilton if they can extend it for you..if not then I think better to wait till wedding show. Is yours a popular date? If yes you may want to ask hilton if can reserve the date & venue for you. If someone else is interested then inform you. But you probably will have to confirm immediately. If no one else also interested..then can drag till the wedding show to sign up