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.

Ex Input:
Okay, I am going to book a table at Sushi Hashiri in San Francisco. Your reservation will be for 11:30 am today for 4 people. Is this correct?

Ex Output:
No


Ex Input:
I can help you with that. What kind of food are you interested in?

Ex Output:
Yes


Ex Input:
Yes that's fine.

Ex Output:

No