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: Can you tell me if the prices are inexpensive?
Example Output: Yes

Example Input: Please make a reservation at Limon for the 13th at morning 11:45.
Example Output: No

Example Input: And is alcohol available there? May I also have their phone number?
Example Output:
Yes