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.
--------
Question: please tell me what time is the reservation for?

Answer: Yes

Question: Okay, I am going to book a table at Sushi Hashiri in San Francisco. Your reservation will be for 11:30 am today for 4 people. Is this correct?

Answer: No

Question: I could not make the reservation. They serve California style food. They don't serve liquor. Wence's restaurant is very nice, should I try a reservation for 2 people today at 11:30 am?

Answer:
No