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

Sentence1: I see there is a train on Friday that leaves leicester at 14:09 to Cambridge, could you book me a ticket for this train? Sentence2: I have 9 restaurants in that area. May I ask what your budget for lunch is? Sentence3: I have a 12:09 that arrives at 13:54. Would that do for you? Sentence4: The duration of the trip is 105 minutes. Have a great day! Sentence5: Yes, the gandhi is in the cheap price range. Their address is 72 Regent Street City Centre. Would you like me to book a table for you? Sentence6: Hi there, I'm trying to find a train that leaves from Leicester but it must be after 11:15. Can you help me book a ticket? Sentence7: I just need the train ID please. Sentence8: There are three cheap resturants int hat area, kohinoor, the gandhi, and mahal of cambridge. Sentence9: I think that is all for now. Sentence10: Did you only need one ticket? Sentence11: The train ID is TR6247, would you like to book a seat? Sentence12: The train ID is TR8882. Can I help you with anything else? Sentence13: No thank you, their information is enough at this time. Do they have a phone number? Sentence14: The Ghandi sounds nice. Can I get their address? And they are a cheap restaurant, right? Sentence15: Please book me a ticket for that train. Sentence16: Yes, their phone number is 01223353942. Is there anything else I can help you with today? Sentence17: Yes, that would be fine. Could I get the train ID? Sentence18: I need a train from leicester on thursday and should leave after 11:15. Sentence19: No thank you. That's not necessary. Can you help me find an indian restaurant in the centre of town? Sentence20: Nothing expensive please. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Thank you for using our system today! Sentence2: I am coming to cambridge and heard about a bed and breakfast called finches. Sentence3: Yes, I would like to arrive before 5:00 PM. Sentence4: It is a lovely guesthouse on the west end boasting cheap prices and a 4 star rating! Would you like their address or phone number perhaps? Sentence5: I actually would like to book the hotel for 7 people starting on Tuesday for 3 nights. Sentence6: I'll be departing from cambridge and going to norwich. Sentence7: I apologize, I actually need to leave after 16:30 Sentence8: No problem, but I'm afraid there are no trains leaving after 16:30 and arriving by 17:00. Might I suggest TR7047, which leaves Cambridge at 16:36 and arrives in Norwich by 17:55? Sentence9: Is there a time you would like to arrive before? Sentence10: Can you also help me find a train on Fridya? Sentence11: Train TR7747 leaves at 15:36 and arrives in Norwich at 16:55. Would you like me to book you tickets? Sentence12: Thank you, no that will be all. Sentence13: OK, the booking for successful. The total is 17.6 GBP and the reference number is MIMOPEN1 . Is there anything else I can do for you? Sentence14: Yes, that sounds great. Please book that for me. Sentence15: I was able to book your party of 7 at Finches bed and breakfast for 3 nights. Your reference number is 4R76GWVJ . Can I help you with anything more today? Sentence16: Of course. There are many available Friday. Where will you be traveling to and from? Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: Yes for 6. and I'll need the reference number. Sentence2: That seems to be everything. Thank you for your help. Sentence3: There are 11 british restaurants to choose from. Is there a particular area you're interested in? Sentence4: I am headed to Stevenage. I cannot get on the train until 14:45. Sentence5: I want a train that leaves from Cambridge on Monday. Sentence6: Thanks. Can you look for a restaurant that serves british food. It sounds good. Sentence7: You are booked and your reference number is 4AEEDA4Z . May I help you wirh anything else today? Sentence8: I can do that but just need a date and time in order to book. When would you like to go? Sentence9: There are 5 options available. Is there a time that you would like to arrive by? Sentence10: Perfect. Have a great day. Goodbye. Sentence11: There are quite a few options available to you. Is there a specific destination you are looking for? Sentence12: Monday at 11:45 please. Sentence13: I would recommend The Copper Kettle located in the city centre. I can book that for you now if you'd like Sentence14: Yes, please. That would help me a lot. I would need to book a table at the one you recommend. Sentence15: I was able to book TR2045, reference number is 7OWLTI02 . Sentence16: No, the first train leaving after 14:45 would be fine. I want to book tickets for 8 people. Sentence17: We have 5 places listed that would meet your needs. Would you like me to recommend one for you? Sentence18: No certain area, but I'd like one in a moderate price range please. Question: Who has spoken the sentence 13? (A) User (B) System

Answer: (B) System