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: No, make it for two people.
Example Output: No

Example Input: No. I need to observe it with subtitles. I need to observe The Aftermath.
Example Output: No

Example Input: I would like to have a reservation made for 11:30 am today for 2 people at McDonald's restaurant in Berkeley. Can you confirm this?
Example Output:
No