That’s a skill.
Especially in industries where it’s hard to communicate. A good example is music. If you’re hiring someone to make custom intro music for a video or an event. You are trying to communicate a feeling which is no small task.
In medical examples, the patient and the doctor may have such a knowledge gap that the communication and understanding of the question is difficult.
In both cases, a skilled musician or doctor, the customer is likely looking for someone who can decipher what they are asking more than they are worried about nickels and dimes.