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 Q]: Yes that is perfect. What is the address and phone number?
[EX A]: Yes

[EX Q]: Yes that's good. Do they serve liquor there?
[EX A]: Yes

[EX Q]: So you would like a table at Paul Martin's America Mountain View in Mountain View for 2 people at 1:30 pm today. Can you confirm?
[EX A]:
No