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: Please make a reservation at Limon for the 13th at morning 11:45.

SOLUTION: No

PROBLEM: What kind of food do you prefer to eat? Which city are you located now?

SOLUTION: Yes

PROBLEM: I want a reservation for Hisui in Vacaville at, say, quarter to 8 in the evening.

SOLUTION:
No