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: At what time do you want to eat?

SOLUTION: Yes

PROBLEM: Ok, What is the address? How pricey are they?

SOLUTION: Yes

PROBLEM: What time would you like to arrive at?

SOLUTION:
Yes