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: Please confirm this: Booking a table at Yayoi Cupertino. The city is Cupertino. The reservation is at 7:45 pm. The date is today. the reservation is for 2 people.

SOLUTION: No

PROBLEM: Which city you want?

SOLUTION: Yes

PROBLEM: I need something in Petaluma for 3 people, at six in the evening.

SOLUTION:
No