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: Enjoy your reservation!

SOLUTION: No

PROBLEM: I'd like to make a restaurant reservation at quarter to 7 in the evening.

SOLUTION: No

PROBLEM: Your reservation has been successfully made, enjoy your meal.

SOLUTION:
No