How you ask for the meeting decides a good part of the answer. A question that lets the customer refuse in one word usually gets that refusal. A question that offers a choice between two times usually gets one of the two times back.
It sounds like a trick of wording. The source points to a real difference between the two answers a customer can give, and everything else follows from it.
The rule, by name
The sales book behind the booklet has a concentrated list of rules, and the seventh is about exactly this: “Offer your prospect a choice: never a yes-or-no.”
The whole chapter sits inside that short line. Say you ask a customer whether they would like to meet. That question has one door, and it opens outwards. Ask whether Tuesday or Wednesday suits them and the question has two doors, and both of them open inwards.
The difference lies in the structure. In the first version the customer has to decide whether to meet at all. In the second the default is that you meet, and they only choose when.
On a booking call this request comes last, with nothing after it, so everything said earlier rests on it. A good call that ends by asking whether the customer is interested lets them refuse, in a single word, everything the call has built.
The author of the sales book does not trust his readers to notice this alone. In his call script, right after the line that asks for the meeting, he adds a bracketed note that points them to the choice and to how it makes refusing harder.
Why a refusal is hard to undo
The mechanism behind the rule comes from the source itself, and it is simple. When a customer says no, they mean it, and it will be very hard for the salesman to change their mind, if he can at all.
So a refusal is locked. What was said once as a no rarely opens again, and the whole job is to avoid giving it the chance in the first place.
A choice between two times leaves room for a refusal, since someone who is not interested will say so anyway. What it does is make the refusal harder and turn agreement into the default.
The source sums up its own example this way: the prospect can still say no, and the salesman has made that a great deal more difficult by offering “a choice, rather than an ultimatum.”
That also separates the rule from pressure. A customer who gets a choice can still say they are not interested, and nobody has shut a door on them. They have simply not been handed an invitation to refuse.
An open question gives no real choice
There is a mistake that runs the other way, and it looks polite. Ask the customer when suits them and you have let them choose, and you have also handed them all the work. The question feels respectful because it leaves the whole decision with them. That is exactly why it returns to them a job the call should have done. The usual answer is a request that you send a few options, and the call ends with no date in the diary.
The same mistake has another side. Telling a customer that you are available all week feels like making things easy for them. In practice it tells them you have no customers.
The choice the source describes is narrow. It is a choice between two exact times, and the whole week is never on offer. The booklet takes the exact wording from the source apart into three components, and each of them does its own job.
What changes when you swap one question
Picture an owner who swapped a single question in his calls and changed nothing else. The calls that ended in a meeting rose from a fifth of them to a third.
Or a designer who stopped ending inbound calls by asking whether it interests the customer, and started offering a choice between tomorrow and Thursday.
Neither of them added persuasion, a longer explanation or a discount. The form of the request changed, and that was all.
Both stories show the same thing. The customers were the same, and so was the service they received. The question at the end of the call was different, and that question decided whether the call had a product.
The booklet gives this chapter two exercises, one to spot and one to build, plus self-check questions. From there it moves on to what you do not say on the phone at all.
On your next call, before you ask for the meeting, check whether your request can be refused in one word.