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]: Sure, which city?
[A]: Yes


[Q]: Sorry, the reservation was unsuccessful. What else may I do for you?
[A]: No


[Q]: Sure, what kind of food do you want? You can request American, Mexican, or anything else.
[A]:
Yes