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: yes, its called marnee in San Francisco.
Example Output: No

Example Input: Confirm me all the info. You want me to reserve a table at Nick's Cove for 2 people in Marshall. I'll make the reservation for today at 7:30 pm.
Example Output: No

Example Input: Yes, that would be very helpful.
Example Output:
No