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, that's perfect. May I also have the exact address for the venue?
answer:
Yes


question:
Yes, try to make it for 18:30.
answer:
No


question:
No. Make it at 12 in the afternoon.
answer:

No