Hello and welcome to planDisney Nataki!
I am sorry to hear that you are having issues reserving entertainment events at Magic Kingdom Park! I understand how frustrating it can be when you have a desire to experience a specific event and can not get it reserved for the timeframe you are looking for.
I am unsure if everything is booked, but I know that October is a popular time to visit
Walt Disney World Resort. The booking window for most events opens 60 days before your proposed arrival date, and there are times you could log on and there may not be availability. From experience, I find it best to check often as an opening could occur anytime before your arrival. No guarantees, but it is worth a try.
If you want to experience an event such as
Mickey’s Not-So-Scary Halloween Party, that availability will depend on the date you would like to visit. Of course, this event brings about some beautiful memories for me because it is so much fun.
Please return and let us know if you have additional questions; we are happy to help you plan for your upcoming vacation.
Have a magical time!
Raquel