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]: which city should I search from
[EX A]: Yes

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

[EX Q]: Sorry, but I was unable to get a reservation at this particular time. Is there another time in which you would like to make the reservation for or anything else I could help with?
[EX A]:
No