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.

[Q]: Yes that works great
[A]: No


[Q]: Reservation for 2 people today at 7:45 pm in city Vacaville at Red Jade is that correct?
[A]: No


[Q]: Do you have any food preferences, such as Chinese or Italian?
[A]:
Yes