TASK DEFINITION: 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.
PROBLEM: uh-ch! Sorry the system crashed and I couldn't make your reservation. Do you need any other details?

SOLUTION: No

PROBLEM: Your reservation has been made. They are on 1001 South Van Ness Avenue. You can reach them on 415-821-2134.

SOLUTION: No

PROBLEM: thats correct. What is their phone number what how expensive are they

SOLUTION:
Yes