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: Movie is playing now. It's a comedy and is directed by tyler perry
Example Output: No

Example Input: Cetrella restaurant in Half Moon Bay. Book it for 1 o"clock in the afternoon.
Example Output: No

Example Input: Okay. What time should I make your reservation?
Example Output:
Yes