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

Example Input: Sentence1: I will take the phone number, entrance fee and address of the one you choose for me. Sentence2: I'm looking for some entertainment related places to go in the centre of Cambridge. Sentence3: Okay. How about a boat anywhere in town? Sentence4: I will choose for you the Cambridge punter, their phone number is 07807718591, they are found on 251a Chesterton road, they don't have an entrance fee. Sentence5: There are two boats in the centre, scudamores punting co and the cambridge punter. Would you like more information? Sentence6: I was unable to find any entertainment in the centre. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I cannot find any restaurants serving halal food. Do you have any other preferences? Sentence2: How about indian food? Sentence3: Their address is 71 Castle Street City Centre, their phone number is 01223 366668. Sentence4: Is Cocum located in the east part of town? Sentence5: No, the Cocum is located on the West part of town. Would you like me to find an Indian restaurant on the east part of town? Sentence6: I have 4 Indian restaurants showing for the east part of town. They are Curry Prince, Pipasha Resteraunt, Rajmahal, and Sitar Tandoori. Sentence7: Correct Sentence8: Hello, I am looking for a restaurant that serves halal food. Sentence9: The Cocum serves Indian food. Sentence10: What is their address and phone number? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Thanks! I also need help finding a train leaving friday arriving by 21:15. Sentence2: The Milton Country Park has free admission. They are located on the North and the phone number is 01223420060. Sentence3: Booked! The price is 10.1 pounds to be paid at the station. Reference number: 2CDCW6I7 . Sentence4: I want to find a park to visit in town. Sentence5: Thank you and have a good trip. Sentence6: Fantastic. Thank you very much for all of your assistance. Sentence7: I need to go to Cambridge, from Stansted Airport. Sentence8: TR5694 leaves at 09:24 and arrives at 09:52 giving you plenty of time. Can I book you a ticket? Sentence9: I have train TR3342 ariving at 21:01. Sentence10: Yes please, a ticket for one, and may I also know the price? Sentence11: I don't really care, just pick one and give me the phone number please. Sentence12: There are 5 parks around town. What part of town would you prefer to visit the park in? Question: Who has spoken the sentence 11? (A) User (B) System
Example Output:
Answer: (B) System