Why are some people reluctant to disclose their information when they call to consult products?

Now many people are afraid of being harassed. There are two possibilities for them to consult without revealing their information. First, they already have the expectation of buying similar products from another brand, just want to know more about it so that they can take the initiative when buying; Second, people who are less willing to buy may want to know more about the product in case they need to buy it later. In fact, such people have one thing in common: they are honest and not good at communicating with others. If you can convince them, they will be the best customers.