Safeway Store Clerk interview questions

Was contacted within days of submitting my application to interview. I confirmed via email the interview date and time. I showed up for my interview and my interviewer had already gone home. The interviewer was contacted, and I was told there had been some "miscommunication" and that I should call back a week later to schedule another interview. When I finally went to my interview, for the 2nd time, the interviewer flipped through my application and told me my availability would not work. Instead of having me come down for 2 interviews, they could have seen my availability did not work and either not called me, or asked me over the phone if I could change availability. But instead, I came down twice to sit there for 2 minutes and when told I couldn't change availability, they said they wouldn't need me. Waste of time and very unprofessional to be a no-show to interview.