It's about setting standards and expectations in advance of a sale. “If you want to work with us, you need to behave a certain way” is the message a confident business gets across. You'll need to state whom you work with, how many people you can serve and on what terms you'll work with them. When you see a business naming its terms, you know it is on track to be oversubscribed. An oversubscribed restaurant might do things like stating its dress code, policy on bringing children, or right to rebook your table if you're not on time.
