I was sent an email by HR to set up a interview. He provided a link to calendar with available times. I picked a time and got a confirmation email too. But he was a no show. I called him couple of times and left him a message too but no response. I sent him an email asking if I should go ahead and reschedule the interview still waiting on a response from him. If HR is unresponsive not sure how the rest of the company will be. Not a good reflection.