{first_name},

I’m just looking for a little feedback.  I wanted to help you implement some of my successful marketing techniques and we have not been able to meet yet.  Do you still want me to help you? Would you let me know either way. If you’ve decided not to take advantage of my offer, it would still be helpful for me to understand how you came to that conclusion.

I can completely respect any reason that someone would decline to work with me, but so that I can improve my ability to connect with my clients, I appreciate being able to gather an understanding of the motivations someone may have to object.  As a salesperson yourself, I’m sure you can understand this.

Thanks!