Hi Daina,
I can certainly understand your concern! I'm happy to put your mind at ease.
The Crystal Palace actually accepts reservations until 7 PM on party nights, so yours will not be the latest reservation. You will not be rushed through your meal, and your daughter should have the same experience she would have any other evening.
If you aren't planning to attend
Mickey's Not-So-Scary Halloween Party, you will be directed towards the park exit when you leave the restaurant. If you haven't considered attending the party, I highly recommend it. Our family has had many wonderful, not-so-scary moments during the party!
Be sure to let us know if you have any more questions we can help you with!
Wishing you a magical vacation,
Amy H