TASK DEFINITION: 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.
PROBLEM: I'm sorry, but I was not able to make that reservation. Their phone number is 650-328-6885. Should I try to book a reservation for 1 person next Friday at 12:30 pm. Jing-jing Szechwan & Hunan Gourmet is quite nice.

SOLUTION: No

PROBLEM: Shall i help you with anything else?

SOLUTION: Yes

PROBLEM: I want to book a table at Khana Peena in Berkeley at afternoon 1:30.

SOLUTION:
No