Well, very easy, you won't find anyone better than me in this,
Sir, I don't really need to start describing myself here to you, but briefly, I am dedicating my whole life to marketing and selling product, whatever was this product.
Just try me, I can even sell my clothes while wearing them, I love this, this is my pleasure, selling; I hope you choose me for this job, I want to say that I can do all the things you asked for, so you don't need to think twice about me if you are truly a smart man as you're claiming, And I TRUST your wisdom, you must be in need of someone who knows what is he doing, and this one is on the step of your door, Just Say HELLO...