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.
--------
Question: Yes that's perfect

Answer: No


Question: So you want to book a table for 2 at Hunan Impression in San Jose? And the time will be 11 am today?

Answer: No


Question: Do you know if their menu is inexpensive and what their address is?

Answer:
Yes