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: 6:15 in the evening at Bistro liaison.

SOLUTION: No

PROBLEM: Is there a specific cuisine type you enjoy, such as Mexican, Italian or something else?

SOLUTION: Yes

PROBLEM: Yes, it is. What's their contact number? And how pricey are they?

SOLUTION:
Yes