I found out that a few members of our party won't be able to come to the dessert party. Is there a way to cancel just their tickets? I could only find a way to cancel the whole group. The dessert party is a "must do" for a few of our group members, and I don't want to risk losing our reservations altogether. Those tickets ain't cheap though, and I would really like a refund for the folks who can't make it...