In a fast food restaurant which only has about 6 tables. You can normally get a seat as it is very much a scoff and go type of place. Me and my friend join the line when there are a couple of free tables so feel confident that we will get a table as often people get takeaways.
Two young women enter one eating food from a different establishment and takes one of the free tables. Her friend joins the queue and purchases food for herself and joins friend at the table.
Aibu to think this is out of order. I can deal with reserving tables (just) when you intend to purchase food but not in this case.