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]: Okay. I will change the restaurant to El Amigo Burrito in Santa Clara. Does this work
[A]: No


[Q]: What time do you want to make the reservation?
[A]: Yes


[Q]: No that's all for now
[A]:
No