I am going to ask my daughter if she wouldn't mind choosing a different wedding date.
What is the point in asking your daughter to switch to a different wedding date?
Well, she has already set the date up and I am beginning to become worried about it.
It's understandable to want to be involved in your child's wedding planning, but you should allow them to set their own date. If you tell them what to do then they may feel like you're being too pushy. Try being reasonable with your request so that they feel like you're being reasonable.
I'm going to go crazy and not accept her decision.
Well that is going to be something that will probably make your child pretty upset. You are better off being flexible and realizing that this is your child's special day, not yours. I think she would really appreciate you letting her make her own choice here based on what works for her.