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.

[EX Q]: Yes, That's it.May I know the price ?
[EX A]: Yes

[EX Q]: Please confirm the following details so I am not mistaken: you would like a reservation for 2 people at 7:30 pm?
[EX A]: No

[EX Q]: Unfortunately, I am unable to make the reservation at your scheduled time. Eric's Restaurant is a great place though, should I try a reservation for 2 today at 6 pm?
[EX A]:
No