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: Do you have a preferred restaurant and time

SOLUTION: Yes

PROBLEM: At what time do you want to go?

SOLUTION: Yes

PROBLEM: Where are they located? What time do you want to eat?

SOLUTION:
Yes