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:
Please confirm that you are requesting a reservation for a table for 2 at Cetrella in Half Moon Bay at 1 pm today.

Ex Output:
No


Ex Input:
What time do you want the reservation for.

Ex Output:
Yes


Ex Input:
At what time do you want to eat?

Ex Output:

Yes