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 want a reservation for Hisui in Vacaville at, say, quarter to 8 in the evening.
Example Output: No

Example Input: I'd like to watch it with subtitles.
Example Output: No

Example Input: Yes that's good. Do they serve liquor there?
Example Output:
Yes