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.

Do they serve alcohol? And what's their phone number?
Yes

Cetrella restaurant in Half Moon Bay. Book it for 1 o"clock in the afternoon.
No

Sorry, I was unable to make a reservation. Is there anything else I can help you with?

No