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]: They do serve alcohol and the price range is moderate.
[EX A]: No

[EX Q]: uh-ch! Sorry the system crashed and I couldn't make your reservation. Do you need any other details?
[EX A]: No

[EX Q]: Please confirm that you want to watch Shine a light without subtitles.
[EX A]:
No