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]: There's a movie called Family. I want to watch that.
[EX A]: No

[EX Q]: What number can they be reached at?
[EX A]: Yes

[EX Q]: Sorry, but there are no reservations for that time. May I help you with something else?
[EX A]:
No