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: For what time do you want the reservation?
Example Output: Yes

Example Input: You're very welcome!
Example Output: No

Example Input: Okay, Captain Marvel is available. There are no subtitles with this movie. Please confirm if this is the movie you want to see.
Example Output:
No