You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: I'd like a recommendation that is able to book a table for 5 people at 14:45 on Friday. Sentence2: Alright, I booked you a table for 5 on Friday at 14:45 at the Kohinoor. Your reference number is 20OK4WP8 . Can I help you with anything else? Sentence3: I'll need to book a taxi from the Cambridge Museum of Technology to the Kohinoor, arriving by 14:45. Sentence4: I'm looking for a place to dine that's in the cheap price range and that serves Indian food. Sentence5: The phone number is 01223368650 and the post code is cb58ld. Can I help you with anything else? Sentence6: Would you like a recommendation, or do you want to specify an area? Sentence7: That sounds great! Can you give me their postcode and phone number? Sentence8: No, you have been very helpful. Thanks so much and have a nice day. Bye. Sentence9: How about the Cambridge Museum of Technology at The Old Pumping Station on Cheddars Lane? Sentence10: I've booked your taxi. It will be a grey skoda and the contact no. is 07998309857. Is there anything else that I can help you with? Sentence11: Thanks, I'd also like to find an attraction in the east, please. Sentence12: Thank you for choosing Help Desk. Good bye. Question: Who has spoken the sentence 10? (A) User (B) System
Output:
Answer: (A) User