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

Example Input: Sentence1: You're welcome and thanks for using our help desk. Goodbye. Sentence2: Thanks for the recommendation. That's all the help I need today. Sentence3: I'm looking for the entrance fee for Castle Galleries. Sentence4: Yes, i would like help locating an attraction. Sentence5: OK - what type of attraction are you looking for, and in what part of town? Sentence6: Their entrance fee is free. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I have information for the Parkside Police Station, is this close to your location? Sentence2: You're welcome. The police will help you immediately. Goodbye. Sentence3: Thank you for your help Sentence4: Please put me in touch with the local police, I was just robbed. Sentence5: The phone number is 01223358966 and the post code is CB11JG. Sentence6: I don't know, could you just give me the postcode and phone? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: what day would you like, and how may days? Sentence2: What is the postcode and address for the museum? Sentence3: It is located in the north. The address is 152 chesterton road. Sentence4: Can you help me find the Worth House hotel? Sentence5: Yes, please, that would be perfect. Sentence6: Worth House is a guesthouse on the north side. It is in the cheap price range, but has four stars. Would you like me to book you a room? Sentence7: There are several attractions in the west side of town. Do you have a preference for the type of attraction? Sentence8: The postcode for that is cb3ojg and the address is Girton College, Huntingdon Road. Can I help you anymore today? Sentence9: I'm sorry, but don't book it. I just need the area and address. Sentence10: Thanks for all your help! Sentence11: Can you recommend some places to go in the west side of town? Sentence12: Not really. What would you recommend? Sentence13: The museum of classical archaeology has free admission and is in the west area. Is there anything else that I can help you with? Sentence14: Happy to help. Have a pleasant day. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User