Rapid7 Rotational Program interview questions

I had my first interview. It was behavioral and on the phone. I thought it went fairly well and I was invited to go ahead with the second interview which was technical and would also be on the phone. Unfortunately, the second interview was supposed to take place right before Thanksgiving 2018 and I sent an email to the recruiter providing my availability and asking what time the next interview would be. So far, no response and it's been about a week. Honestly, it's unprofessional of the company to leave someone hanging especially after agreeing to another interview.