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: I would like to watch visitor
Example Output: No

Example Input: Is there a preferred restaurant you are looking to make reservations at and what city will this be in?
Example Output: Yes

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