I've never heard of a shop where they let the walk in's jump in front of people with appointments.
I don't think I'd like that much. Not much at all.
I am loyal to my hairdresser, not the salon. She is the ONLY person who has understood my fine hair and how to cut it so I don't look like a woggle-bug from Oz. She has my address and phone number if she goes to another salon; I will switch in a New York minute.
Usually I don't run into this problem because I get my hair done on Mondays. I should have thought about the scheduling problem.
This is a big salon and spa which is open seven days a week and late in the evening. I think they make a LOT of money on volume, etc., plu sales of products. At any rate, I will be smarter next time.