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]: You're welcome. Good bye.
[EX A]: No

[EX Q]: I'm a little concerned about price. Would you say that the price range is not very costly.?
[EX A]: Yes

[EX Q]: I will book you a table for 2 at Kufu-ya in San Francisco for 6 pm today. Is that correct?
[EX A]:
No