Thank you.

I too must tell you that working with you has been such a pleasure. Your professionalism, attentiveness and honesty has been very useful and something I've really appreciated, especially considering my past experience with head hunters. I cannot begin to thank you for all your help and guidance. This experience has been unlike no other and I am confident that [my new firm] is going to be the beginning of a whole new career for me! I have you to thank for that.