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

Sentence1: Okay great, have a good day. Sentence2: Yes, quite a few! There's Broughton House Gallery, the Whipple Museum of the History of Science, and more. Would you like to know more about them, or the others? Sentence3: Yes, can you book it for 3 people and get me the reference number? Sentence4: Primavera is at 10 King s parade CB2 1st, the phone number is 01233357708. What day would you like to board the train? Sentence5: Could I get the address, phone numbers, and postcodes of them please? I'm also looking for a train from cambridge to broxbourne. Sentence6: Can you find me a multiple sports attraction in the centre? Sentence7: No, actually. I am all finished. Thanks for the help. Goodbye. Sentence8: Train TR9580 departs from Cambridge at 10:01 on Sunday and arrives at Broxbourne at 11:01. Would that work for you? Sentence9: Sorry there's no multiple sports in the centre. Would you like to try a different area? Sentence10: There are 11 museums in the area. They are all free. There are several art museums, an archaelogy museum, and a science museum. Sentence11: Yes I would love some information. Sentence12: Are there any museums in the centre? Sentence13: Sunday, and it should arrive by 12:00. Sentence14: Booking was successful, the total fee is 42.96 GBP payable at the station . Reference number is : IRD8RUWO . Do you need help with anything else? Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Not really. Would you see if the highest rated, least expensive guesthouse has rooms for 5 nights for 6 people, beginning Wednesday? Sentence2: I would like to stay in a guesthouse that is in the south. Sentence3: I was able to book Rosa's Bed and Breakfast for you for 5 nights for 6 people starting on Wednesday. The reference number is RTITW2L5 . Sentence4: I am traveling to London Liverpool Street from Cambridge. Sentence5: There are 10 trains that meet your criteria. Do you have a preferred time that you would like to arrive by? Sentence6: Of course! The best option is the TR7092 leaving at 17:59 with a duration of 88 minutes. The price is 16.60 pounds. How else may I assist you? Sentence7: Yes, I was wondering if you could assist me in finding a train for Monday. Sentence8: There are 2828 trains available Monday. Where are you traveling to? Sentence9: I have found 29 hotels that fit your criteria for parking. What price range are you looking for? Sentence10: There are three guesthouses in the south with free parking in the moderate and cheap price ranges. Do you have a star or price range preference? Sentence11: I'd like to find somewhere to stay with free parking; I'm planning to rent a car during my stay. Sentence12: It was my pleasure to help. You have a great day. Goodbye. Sentence13: Thank you. I believe that is everything I need today. Sentence14: Yes, I need to leave after 17:30, please. I don't need tickets right now, I'll just need the price, travel time, and train ID. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Ok, their address is Wheeler Street. Sentence2: Jinling noodle bar is in the centre area serving Chinese in the moderate price range. Would you like to reserve a table? Sentence3: Enjoy your dinner. Sentence4: I made a reservation for your party of 3 at the Ugly duckling for Saturday at 15:15. Your reference is PEZ07FH7 . Is there anything else I can help you with? Sentence5: There are 4 options, but i personally recommend the cambridge corn exchange, would you like more info? Sentence6: I want something expensive. Sentence7: I am also looking for a theater. Sentence8: What area of town would you like the restaurant to be in? Sentence9: I do not know you can call 01223357851 and find out. I suspect it varies based on day and time so calling would be best. Sentence10: That's great I will call them, thank you. Sentence11: No thanks. You covered everything. Have a good night. Bye. Sentence12: Yes more info and adress and is there any fee's ? Sentence13: Could you make a reservation for 3 people at 15:15 on Saturday and provide the reference number? Also looking for a theatre in the same area. Sentence14: And i there an entrance fee? Sentence15: No problem, are you all set or is there anything else that hasn't been covered yet? Sentence16: I'd like to be in the centre of town. Sentence17: I'm looking for a Chinese restaurant please. Or one that serves Chinese food. Sentence18: I think you would enjoy ugly duckling. Want more information? Question: Who has spoken the sentence 1? (A) User (B) System

Answer: (B) System