Here's what you say: “Mr. Jones, I'm really not sure what to say. I am so convinced that we have the best service, the best pricing, the best customization, and the best reputation of any firm in our industry that I can think of only one reason for you not to sign on with us. And that's that I must have done something terribly wrong just now in giving my presentation. So I'm going to ask you to give me a hand, Mr. Jones, and tell me where I went off course. Because, to be quite frank with you, sir, I know this service is right for you, and I'd really hate to have made a mistake like that.”