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:
Do they serve alcohol? And what's their phone number?
answer:
Yes


question:
What time should i make the reservation for?
answer:
Yes


question:
Yes, thank you, Can you give me the address to the restaurant? I was wondering what kind of prices do they have?
answer:
Yes