Switched goodlife Gyms, is the orientation for the Machines optional?

I know how to use all of the machines, but they booked me for a 1 hour "orientation" to show me how to use the machines. I tried explaining ive been to goodlife before but it didnt help. Is the 1 hour orientation really necessary? Is it Mandatory? Ive been going for a week already and have used most of the machines already without this orientation. Is there any way to opt out of it?