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 sound good, May i know Who's Its director?

Answer: Yes


Question: Yes, that works for me. Do they play live music? Is the price range lavish?

Answer: Yes


Question: No, not at this time.

Answer:
No