Context: I had a doctors appointment at 9 am, I had to wait an hour and a half to even start my appointment.
Speaker 1: I had a doctors appointment at 9 am and they kept me waiting for almost 2 hours.
Speaker 2: Really!? That is very unprofessional of them to make you wait for so long.
Speaker 1: It was terrible I ended being late for work because of their horrible service.
Speaker 2: That is frustrating. You should complain to them.