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.
--------
Question: What city shall I make this reservation?

Answer: Yes


Question: The reservation was successful. Please plan to arrive at the Lark by 5:30 pm.

Answer: No


Question: Confirm Green book with no subtitles

Answer:
No