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 Input:
Yes, thank you. How's the pricing? Low priced?

Ex Output:
Yes

Ex Input:
Please reserve it for 7 in the evening.

Ex Output:
No

Ex Input:
Yes that is correct. Do you have their phone number?

Ex Output:
Yes