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: Yes, that is correct. What is their address and phone number?

SOLUTION: Yes

PROBLEM: thank you very much.that is all i need.

SOLUTION: No

PROBLEM: I have registered your reservation. And no, there's no live music.

SOLUTION:
No