instruction:
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.
question:
Okay, making sure I've got all the details: you want a table for 2 at Bob's Steak & Chop House in San Francisco next Friday at 5:15 pm?
answer:
No


question:
Who directed this movie and what is its genre?
answer:
Yes


question:
Is there a preferred restaurant you like?
answer:

Yes