"As a serviceable negotiator and observer of people, I have faith that you are." A master negotiator that is. Moreover, Han thinks you've got (or can get) the right network to be able to take advantage of said negotiation skills.

Now, if he should be so trusting of you? Well, the jury is kind of out on that one, but you've also given him no reason not to trust you either. That makes you allies in Han's book.

"Thanks in advance for whatever you can do."