Now it's not your cancellation, but the hotel cancellation. Just tell him that he must give you a banquet that day, and when the decoration can't be installed, he will have to do it that day. Either let them cancel the subscription or let them decorate quickly. It's not their fault. He said he wouldn't pay it back, so you asked him to do the banquet. Isn't the date written on the note nice? He can't keep his promise, and you don't have to keep it. Do you still need laws? It's no use suing. When you're done, you won't be in the mood for a banquet. You'd better find another hotel. If your reputation is gone, what hotel can you do?