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.

Q: Do you have a preferred restaurant and time

A: Yes
****
Q: That's incorrect, I was it to be on the 14th of this month.

A: No
****
Q: I need help with making a restaurant reservation.

A:
No
****