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]: That's right. Do they serve alcohol? And how expensive is the place?
[EX A]: Yes

[EX Q]: thank you very much.that is all i need.
[EX A]: No

[EX Q]: I have a table for 2 people today at 4:45 pm at the Burma Ruby Burmese Cuisine in Palo Alto.
[EX A]:
No