You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example Input: Sentence1: Thank you for using the Cambridge TownInfo centre. Have a great day. Sentence2: City Centre North B and B is at 328a Histon Road. Please let me know if you would like restaurant recommendations. Sentence3: Hi, can you help me locate a hotel named City Centre B and B. Really looking forward to trying different restaurants. Sentence4: Are you still there? Were you able to book that? Can I get a reference number please? Sentence5: i am doing that right away sir. thank you Sentence6: Booking was successful. Reference number is : MOPETAI4 . Sentence7: Thank you, good bye Sentence8: Can you please help me book that hotel for 8 people. We'll be staying for two nights starting on Tuesday. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Sounds good. Have a good day. Sentence2: Thank you very much. I will contact them now. Sentence3: Can you give me the contact info for the nearest police station? Sentence4: Sure! The Parkside Police Station is located at Parkside, Cambridge and can be reached at 01223358966. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Alright that helped, thanks for your time. That's alls I needed to know. Sentence2: yeah, i need seven tickets. Sentence3: OKay, what day and time are you looking to leave? Sentence4: It's been a pleasure. Good day. Sentence5: I need a train for London Kings Cross to Cambridge. Sentence6: Yes, I'd like to know the address, please. Sentence7: Sure thing its on trinity street. Sentence8: The Williams Art and Antiques museum is located in the center. Would you like more information about this attraction? Sentence9: Booking was successful, the total fee is 132.16 GBP payable at the station. Your reference number is : 26VNGN0I . Can I be of any further assistance today? Sentence10: Can you find a place to in the centre? Sentence11: i recommend TR7223. can i book? Sentence12: I want to leave Saturday after 10:45. Question: Who has spoken the sentence 3? (A) User (B) System
Example Output:
Answer: (B) System