I have a question about a job interview?

I went in for a job interview last week and it went great. The interviewer told me he was going to put me on the schedule for next week and my orientation would be sometime this week (likely today/wednesday). He wanted me to email him on the weekend about availability and he said he would email me back my schedule. I did that on Saturday, and there was no response. On Tuesday, I sent an email making sure he got the previous one and after no response I called later that day. He said he got both emails but it has been very busy, and to not for it was on his to-do list for the day. Now it's Wednesday and there's no email or call. I don't know what to do. I'm totally in the dark here and it's kind of annoying.