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.

Example Input: please confirm the following details:booking a table at la traviata. the city is san francisco.the reservation is at 6:30 pm.the date is today. the reservation is for 2 peoples.
Example Output: No

Example Input: What kind of food are you looking for? An example can be Chinese, American or anything else.
Example Output: Yes

Example Input: Who's the director of this movie? I used to know but i'm totally drawing a blank.
Example Output:
Yes