My response would be sorry to hear, we will miss you.

I can understand that they made their rental arrangements far ahead, ours for 2022 was made 11 months in advance. It would be great if they are able to change, but if not I would let it go. Maybe you could have a family celebration party over the summer?

I remember when your daughter was very young. I feel joy for her and you as well! Congratulations to her!