Medical equipment sales in the visit if the other party said "I will not buy" and "you find me useless" when I should be how to answer with the customer?

To the customer said today on our company, want to meet you to recognize and make friends with you, if he is responsible for this thing, you will not buy, is not the reason for the purchase of the budget, and other reasons, you can rest assured that I will not be forced to sell and buy, I just hope that my company's products and services to help users solve the problem before I sold him. You find me useless, then you see who is responsible for this project, can tell me his contact information, I want to contact him, meet to talk about, if you can help your company or enterprise to improve productivity and generate economic value, this is what I hope.