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:
To confirm: I'm booking a reservation for 2 people at Jing-Jing Szechwan & Hunan Gourmet in Palo Alto next Friday at 12:15 pm.

Ex Output:
No


Ex Input:
I want to reserve a spot at a table tonight.

Ex Output:
No


Ex Input:
At what time you want to be the reservation?

Ex Output:

Yes