You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: How many tickets please Sentence2: I want to go to Cambridge on Wednesday. Sentence3: I can give you all kinds of information as well as book a ticket. Where are you going and when? Sentence4: Have a great stay in town. Goodbye. Sentence5: Train TR9741 arrives at 07:52 and I have booked you for 2,here is your information:Booking was successful, the total fee is 8.8 GBP payable at the station . Reference number is : U44P6DQP . Sentence6: I want you to book it for 5 nights, starting wednesday. 2 people. Sentence7: Where will you leave from? Sentence8: Sure thing, what kind of information do you need? Sentence9: Nope, that's all I need today. Thanks for all your help. Goodbye! Sentence10: Okay that booking was successful. Your reference number is 2VD26230 . Anything else I can do for you? Sentence11: I am looking for information and would appreciate the help. Can you help with a train? Sentence12: Would you like to specify a departure or arrival time? Sentence13: I would need 2 tickets. Sentence14: Can you also look up the hotel Carolina Bed and breakfast? Sentence15: I will be leaving from ely. Sentence16: I need to arrive by 08:45 Question: Who has spoken the sentence 13? (A) User (B) System

Answer: Answer: (B) System

Question: 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

Answer: Answer: (B) System

Question: Sentence1: Hi, I am looking for information on train schedules going to Cambridge. Sentence2: There are several. One arrives at 18:07 will this work? Sentence3: That is all. Sentence4: Booking was successful. The table will be reserved for 15 minutes. your reference number is G44NSDGJ . anything else you need help with? Sentence5: Do you have a particular itinerary in mind? Sentence6: I am also interested in a place to dine that is moderately priced. Sentence7: I recommend Cotto, located at 183 East Road City Centre. Would you like a table there? Sentence8: The first train after 16:45 is the TR8925, departing Bishops Stortford at 17:29. Would you like to book one or more tickets for this train? Sentence9: Thank you for calling. If you need any further assistance please don't hesitate to call back. Good Bye! Sentence10: You are welcome. Did you want me to book your train tickets? That was left up in the air. Sentence11: thanks for your help. that is all i wanted Sentence12: Yes, I would. May I please get the arrival time? Sentence13: Yes, I was looking to leave Bishops Stortford on Monday sometime after 16:45. Sentence14: I have many moderately prices options. Is there a type of food you'd like? Sentence15: British food sounds good. Somewhere in the centre. Sentence16: Yes please. I just need it for myself at 20:30 that same day. Question: Who has spoken the sentence 1? (A) User (B) System

Answer:
Answer: (B) System