Macy's Sals Associate interview questions

I applied for Macy's online and 2 weeks later i recieved an email saying that they would like to invite me to schedule myself for an interview. They gave me a link to access the Scheduling Center and i was able to review the available times and choose. During the interview I was asked questions such as why I wanted to work there, I thought the interview went well. After he finished asking the questions he said he had to speak to the manager to see what was available. When he comes back he apologizes and tells me that unfortunately there were no positions available at the time and they would contact me if they did. I was a little annoyed at the fact that they offer interviews even though there weren't positions available. I didn't understand the point of the interview, if it were the fact that i didn't meet their expectations I don't think they would lie about something like that, that would be unprofessional.

I filled out an application online and i recieved an email response inviting me to come in for an interview. At the interview I was instructed to complete another writtne application. During the interview, the interviewer politely questioned me about why I wanted to work for Macy's. They then informed me that the position was comissioned.