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

Example Input: Sentence1: Yes, one ticket is fine. Sentence2: Hi I need to get to Cambridge by 5:30 PM. Is there a train for that? Sentence3: Nope, that's it! Thanks! Sentence4: Thank you for using our service. Have all of your needs been met? Sentence5: You're welcome. Good-bye. Sentence6: And you would like to book just one ticket, is that correct? Sentence7: I will be departing from Norwich on Wednesday. Sentence8: There are multiple options that will get you to Cambridge by 5:30pm. Could you please tell me where you will be departing form and what day you are traveling? Sentence9: TR0033 departs Norwich at 15:16 and will arrive in Cambridge at 16:35 (4:35p.m.). Would you like a ticket on that train? Sentence10: The trip is 79 minutes. Sentence11: That's all thank you Sentence12: Great. I have you on that train and your reference number is Y1XTHTJA . Is there anything else I may help you with today? Sentence13: Thank you for the information! Sentence14: That would be fine. How long is the trip? Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: The Hotpot is an expensive Chinese restaurant in that area. Sentence2: Great can I get their phone number as well please? Sentence3: You're quite welcome! Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence4: Would you like to eat Asian Oriental, Chinese, European, or French? Sentence5: No thank you. Have a great day! Sentence6: I am looking for an expensive place to dine in the north. Sentence7: The phone number for the hotpot is 01223366552, would you like me to book you a table? Sentence8: I think Chinese may have caught my attention. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Yes please book it for 6 people for 4 nights starting wednesday. Sentence2: OK, the booking was successful. The total fee is 60.59 GBP, payable at the station. Your reference number is AK36XDFI . Sentence3: Thank you so much. You have been very helpful. That is all I need for now. Bye. Sentence4: Yes I have stayed there many times. It is pretty cheap but offers free internet and free parking. Can I book a room for you? Sentence5: Okay, you're all set! Your reference number is: 75UHIUU5 . Sentence6: I have the TR7667 that leaves at 08:24 available. Would you like me to book seats on that? Sentence7: I will be departing stansted airport and arriving in cambridge. Sentence8: I am also looking for a train leaving after 08:15 and should be on the same day as the hotel booking. Sentence9: Yes, please book it for 6 people. Sentence10: You're welcome. Have a nice day. Sentence11: Have you ever heard of alexander bed and breakfast? Sentence12: Can you tell me where you will be departing from and where you are heading to? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output:
Answer: (B) System