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: So, it's next Friday for 2 people?

SOLUTION: No

PROBLEM: Yea, that sounds great. Is Dana's expensive?

SOLUTION: Yes

PROBLEM: What's the address and contact number?

SOLUTION:
Yes