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 is their physical address and do you know if they serve liquor?

SOLUTION: Yes

PROBLEM: Sounds good to me.

SOLUTION: No

PROBLEM: Make a reservation in Dynasty restaurant for two people.

SOLUTION:
No