请帮解释一道英语交际题
问题描述：
请帮解释一道英语交际题
may i have an appointment with the doctor?
A sorry, he is busy at the moment
B certainly. may i know your name?
答案是B解释说A 不用于回答预约 . 我想问如果想表达不可以,该怎么回答?
答
因为是预约.A中说的是现在很忙,当然不可能.
你可能回答：sorry,he has been busy these days.