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 am having difficulty booking either of the. Can you find another day or time that would suit you? Sentence2: Absolutely. Can I suggest the Warkworth House at a moderate price range, or the Autumn House at a cheap price range. Do either of these interest you? Sentence3: OK, you're all booked for 3 nights at the Warkworth House, starting Thursday. Your reference number is AC1NVW47 . Can I help with anything else today? Sentence4: I would consider both. I need to book for three people and 5 nights starting on Thursday. Can either of them offer that? Sentence5: There are 6 possible places that fit your request. Would you like more information or to add additional search preferences? Sentence6: Good Afternoon, I am looking for a place to stay on the east side in a guest house Sentence7: Can you see if any of them offer free parking? Sentence8: You're welcome. Goodbye! Sentence9: I really need to stay during that time frame. Would you mind checking again? Sentence10: No, that will be all. Thanks! Sentence11: Honestly, any price range will do. Can you suggest one for me and help me with booking a room? Sentence12: 5 of the guesthouses offer parking. What is your price range preference? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Hi, I am looking for a place to swim at in cambridge. Sentence2: The Yippee Noodle Bar is moderately priced. Would you like me to book you a table? Sentence3: That is all I need. Thank you. Sentence4: Thanks, also in the centre of Cambridge, could you find me an asian oriental place to dine? Sentence5: There are 4 options for asian oriental which range from cheap to expensive. Do you have a preference? Sentence6: May I have their phone numbers and the entrance fee for the pools. Sentence7: Unfortunately it is not available at that time or party size. Sentence8: I prefer moderate cost Sentence9: There are four, including parkside pools located in the centre. Sentence10: The number for parkside pools is 01223446100. You will need to call them to see if there is an entrance fee. Sentence11: You now have a 16:45 reservation for 7 at Yippee Noodle Bar. Your reference number is BOZ3MSRO . Sentence12: Let's try 16:45 then. Sentence13: You are very welcome. Goodbye. Sentence14: Yes I would like to book a table for 7 on Monday at 17:45 Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Sure thing. Where will you be travelling from and on what day? Sentence2: Yes, it sounds great. Can you book 8 seats for me please? Sentence3: Great! Train TR6913 leaves at 19:54 and arrives by 20:43, with a price of 12.80 pounds. Would that work for you? Sentence4: I recommend the museum of archaelogy and anthropology Sentence5: Your booking was on TR6914 not TR6913. Your reference number is 4L2BQ9VA . Can I help you with anything else today? Sentence6: I will be departing from Stevanage on Tuesday. Sentence7: They are located at university of cambridge, downing street and there is no entrance fee. Would you like their phone number as well? Sentence8: I'm looking for interesting museums in the centre of Cambridge, can you recommend me any? Sentence9: Not right now, but thanks. I do need a train to cambridge that leaves after 18:30, though. Sentence10: Thank you for contacting Cambridge TownInfo Centre, have a great day! Sentence11: That sounds great! Can I have their address? Sentence12: No, thank you! Question: Who has spoken the sentence 4? (A) User (B) System
Example Output:
Answer: (A) User