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:
Sure, What time is good for you?
answer:
Yes


question:
Yes that works great
answer:
No


question:
What time would you like to make the reservation for and what city would you like me to search in? Do you have any restaurant preferences?
answer:

Yes