instruction:
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:
What time is it for? Do you have a preferred restaurant?
answer:
Yes

question:
Make the reservation in San Francisco for 7 in the evening on Wednesday next week.
answer:
No

question:
What type of food do you want to eat?
answer:
Yes