I particularly regret that cannot go to the interview. I have an important meeting in the same time. I can't leave them to really. If you have a chance. I do not, of course, missed.
I regret very much not to be interviewed. I have an important meeting this time. I can not leave such work to get it. If there is a next time I do not miss Shannon
I'm sorry for unable to interview. I have a meeting an important task at this time. I can't leave such a job really go. If a chance next time, I miss the course.