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: Where is the restaurant?
Example Output: Yes

Example Input: Sorry, the reservation was unsuccessful. What else may I do for you?
Example Output: No

Example Input: The restaurant is in Berkeley and it's called House of Curries. I would like a reservation for 1 person at quarter past 5 in the evening.
Example Output:
No