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]: 6:15 in the evening at Bistro liaison.
[EX A]: No

[EX Q]: Yes, all of those details are correct.
[EX A]: No

[EX Q]: I have successfully made the reservation.
[EX A]:
No