instruction:
You are given a sentence from a conversation between a human and a virtual assistant. Your task is to identify whether the sentence is a question or not. Answer with Yes or No.
question:
Please confirm change to 1:15 pm for 1.
answer:
No


question:
Ok ,That's great. I need to know its director? who is he?
answer:
Yes


question:
Yes that's perfect, thanks. What's their price range?
answer:
Yes