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: I'm thinking 5:15 pm.
Example Output: No

Example Input: I see. So you'd rather book it in San Francisco on March 14th?
Example Output: No

Example Input: No, thank you for your help.
Example Output:
No