I booked my op date about a week after my first consultation as my surgeon only had 2 dates left in January so there was no way I was letting them go.
Whether or not you can book your op for the beginning of December really depends on what surgeon you go with, but bare in mind you will need an appointment for your pre-op too and you will need to get your medical history over to MYA. To save delays, I would suggest you get your brief summary from your GP as soon as you can xx