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]: Search in San Francisco.
[EX A]: No

[EX Q]: My pleasure. Can I be of further assistance?
[EX A]: Yes

[EX Q]: Do you have a specific area in mind where you would like to eat.
[EX A]:
Yes