Selling: Building Partnerships 7th Edition by Barton Weitz,Stephen Castleberry ,John Tanner

Exercise 9

Alice Christensen spent considerable time working with a prospective buyer. She thought a good order would be forthcoming on her next call. A portion of her conversation with the buyer went as follows:
BUYER: You know, I like what I hear about your concrete pumping service. But how can I be sure it will be available on the days that we need it for our next project
ALICE: We've never had any real complaints before. I'm pretty sure they will be easily available.
BUYER: You are sure of that ALICE: Well, I've never heard of any problems that I can remember.
BUYER [appearing unconvinced and looking at some papers on his desk without glancing up]: I'll let you know later what I plan to do. Thanks for dropping by.
How can you improve on Alice's answer to the buyer's concern