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

Example Input: Sentence1: Booking was successful, the total fee is 75.59 GBP payable at the station . Reference number is : LQKC8QD2 . You'll be on the TR1193 which will arrive at 12:54. Sentence2: Thanks for helping me, I am all set. Sentence3: Are you looking for a place to visit, eat or stay? Do you need transportation? Sentence4: Can you book 2 tickets for a train that arrives closest to 13:00 please? Sentence5: Great, thank you for visiting us and I hope that you enjoy your stay. Sentence6: I am looking for information in Cambridge Sentence7: I found 7 trains that match your criteria. How early do you want to leave? We have trains running every hour from 05:09 to 11:09 Sentence8: I'm interested in any boats on the westside. Sentence9: Okay great! I also need a train. Can you assist me with that? Sentence10: There are a number of colleges in the west. I suggest magdalene college on magdalene street, cb30ag. Phone is 01223332138. Entrance is free. Sentence11: Sure, I am going to be travelling from Leicester to Cambridge on Monday. I need to arrive by 13:00. Sentence12: Okay what about any atttaction that is in the type of college and if available may i have the entrance fee, phone number and postcode. Sentence13: Yes, I need more information on your trip first. Sentence14: There are no boats on the west side of town right now, do you have something else you'd like to try? Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: That's all I need. Thank you! Sentence2: Yes, please. Table for 8 at 15:00 on wednesday. Sentence3: I can't wait to get to Cambridge and try some of the restaurants I've heard about. Can you tell me about one of them? I think the name is Little Seoul. Sentence4: Thank you for contacting Cambridge TownInfo centre. I hope you have a nice trip! Goodbye! Sentence5: I have a train leaving cambridge at 11:36 and arriving in norwich by 12:55. Would you like me to book that for you today? Sentence6: I'd like to arrive in Norwich by 13:15 if possible. Sentence7: Can we do the same day at 14:00 instead? Sentence8: I'm so sorry, but Little Seoul was unable to accommodate that reservation. Would you like to try a different day or time? Sentence9: Little Seoul is a Korean restaurant in the city centre which is in the expensive price range. Would you like me to book a table for you? Sentence10: The booking was successful, reference number is 0F3L674U Sentence11: Thats is great, I need it for 8 people as well, and can I get a reference number as well please? Sentence12: Where will you be wanting to go? Sentence13: Great I also need to get a train on thursday leaving from cambridge. Sentence14: Sure thing. Your booking was successful. Your reference number is : WOWBP7SK . Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Booking was successful. Reference number is : AOJGD8XG . Is there anything else I can help you with today? Sentence2: Sure, I am fond of the acorn guest house personally. Did you have a price range that you'd like to stick to? Sentence3: It's been a pleasure. Have a good day. Sentence4: I'm not too concerned about price. Is the Acorn Guest House in the north section of Cambridge? Sentence5: yes, i want to book it for 8 people and 3 nights starting from wednesday Sentence6: Sure thing, will you be needing a reference number? Sentence7: Certainly. What is your intended destination and travel time? Sentence8: Yes, Christ's College is on Saint Andrew's Street and the post code is cb23bu. It's free admission. Sentence9: Yes, I am looking for a multiple sports attraction in the centre. Sentence10: How about a type of college? Could you provide me with the postcode, entrance fee and address? Sentence11: I'm sorry, but there are no multiple sports type attractions in the centre. Would you like to try a different area? Sentence12: Okay, you're all set. I booked a blue honda and the contact number is 07846176365 Sentence13: Yes it is. Are you wanting to make a booking. Sentence14: Thank you! I also need a taxi please. Sentence15: Hi, I am planning my upcoming trip and am looking for a place to stay. Can you recommend something for me? Sentence16: Thanks so much. You took care of everything I needed. Thanks. Goodbye. Sentence17: Yes please. I will need that. Sentence18: I need to leave the attraction by 21:00 please. Question: Who has spoken the sentence 12? (A) User (B) System
Example Output:
Answer: (A) User