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 they have alcohol?

SOLUTION: Yes

PROBLEM: Please verify the following information: reserve a table a Paya Thai in Hayward at 5 pm today for 2 people.

SOLUTION: No

PROBLEM: Please confirm the following reservation for 5 people at 11 am.

SOLUTION:
No