TASK DEFINITION: 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.
PROBLEM: Are you looking for Chinese food? Italian food? Some other kind of food? Which city are you planning on eating in?

SOLUTION: Yes

PROBLEM: 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?

SOLUTION: No

PROBLEM: Do they have a number and do they have live music?

SOLUTION:
Yes