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:
How expensive is the restaurant? And can you find their phone number?
answer:
Yes


question:
Please confirm you'd like me to book a table for 4 people at the 3rd Cousin.
answer:
No


question:
No. Thank you. That'll be all.
answer:

No