Who is Claudine from Confessions of an Economic Hit Man and what is their importance?

Claudine is the EHM who trains John. She is very attractive and seductive and knows how to play and work John. He is upset that a woman was sent to train him, but this was probably done deliberately to make sure that he would be trained correctly. She taught him all about being anEHM and was very stern about never revealing their secrets, since she would just deny them anyways. She gets into John's head, and he never forgets how lonely he feels whenever he thinks about her.