Dear (Bosss Name),
Thank you so much for seeing me yesterday. The interview confirmed what others have told me - that (Company Name) would be a terrific place for someone with my skills and interests.
I am convinced that I could make an impact and add value as a (job title) in your department. As we reviewed my background, I hope that you came to a similar conclusion. It was indeed a pleasure to discuss the opportunities with you. I thank you again for the opportunity and look forward to our next interaction.
Again, you can reach me (when) (Call time) at (telephone), or you may leave a message on my answering machine, and I will return your call promptly.
Sincerely,
(Signature)