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: Can you reserve a table for me?
Example Output: No

Example Input: I could not make the reservation. They serve California style food. They don't serve liquor. Wence's restaurant is very nice, should I try a reservation for 2 people today at 11:30 am?
Example Output: No

Example Input: Yes that's right. What is thier address and phone number?
Example Output:
Yes