Job Interview Questions: I receive a job interview, how i'm going to reply?

I received a job interview/exam but I told to employer that I'm no longer available because I already hired, but my problem is, i decided not to continue. How i'm going to ask the employer employer to reschedule, since i told told her that i'm no longer available?

Know How to Answer Job Interview Questions Regarding Your Weaknesses

Recommended Answer:
Call and tell her that the job offer fell through. She may give you another chance.

Best Way to Handle the Questions in Every Job Interview - Before, During and After the Interview