Slip this into your closing graph and let me know if you get a call back.
“My experience along with an impeccable work ethic, exceptional organizational skills and a tireless ambition make me an asset wherever I go. In fact, I’m so ambitious, I went ahead and scheduled an interview in your office at 10 a.m. [Insert Desired Date]. If you fail to contact me, I’ll assume we’re on for said interview. Thanks for your time, and I’ll see you in a few days.”