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:
Do they have any liquor supply?

Ex Output:
Yes


Ex Input:
No, that will be all. Thank you very much.

Ex Output:
No


Ex Input:
Please confirm you would like me to book a reservation at El Amigo in San Francisco at 5 pm today for 1 person.

Ex Output:
No