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]: Yes that's fine
[EX A]: No

[EX Q]: I can sure try, what time do you want to eat?
[EX A]: Yes

[EX Q]: Excellent. Thank you.
[EX A]:
No