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.

Example Input: No, I want it in Sunnyvale. Make it at 12:30 pm.
Example Output: No

Example Input: I want to watch Viva Las Vegas, but make sure it has subtitles.
Example Output: No

Example Input: Yes perfect.
Example Output:
No