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: What city would you like for me to look in?

SOLUTION: Yes

PROBLEM: Please confirm you'd like me to book a table for 4 people at the 3rd Cousin.

SOLUTION: No

PROBLEM: What time for?

SOLUTION:
Yes