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: They do serve alcohol but there is no live music.

SOLUTION: No

PROBLEM: Do you prefer any special kind of food like Indian, Chinese or any other food?

SOLUTION: Yes

PROBLEM: What time do you want the reservation for.

SOLUTION:
Yes