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: Sorry, the reservation was unsuccessful. What else may I do for you?

Answer: No


Question: What time would you like for your reservation.

Answer: Yes


Question: No, I don't want to watch that movie anymore. I want to watch Shine a Light.

Answer:
No