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:
In which city is Cassava restaurant and what time would you like the reservation?
answer:
Yes


question:
Okay, can you verify for me that you want a reservation for 2 at Allegro Romano located in San Francisco today at 7:30 pm?
answer:
No


question:
Sorry your booking could not be done.Can i help you in any other thing?
answer:

No