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: Yes, that works for me. Do they play live music? Is the price range lavish?
Example Output: Yes

Example Input: Your reservation has been successful. Their price range is moderate.
Example Output: No

Example Input: I hope you have a great day.
Example Output:
No