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:
What's their phone number?

Ex Output:
Yes


Ex Input:
I want to make a reservation at restaurant Hisui 2.

Ex Output:
No


Ex Input:
Okay, I have a reservation at Buon Appetito in Hayward for 1:30 pm on March 11th for 2 people, is this correct?

Ex Output:
No