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.

Ok ,That's great. I need to know its director? who is he?
Yes

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.
No

What city is the restaurant located in and at what time would you like a table?
Yes