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

Q: 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

A: Answer: (A) User
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Q: Sentence1: I am planning a trip in Cambridge. I'm looking for a train. Sentence2: no, that is all. Thanks, goodbye. Sentence3: It will cost you 17.90 Sentence4: Where are you departing from? Sentence5: I would suggest this one the golden curry. Sentence6: your all set! Reference # is TKNF8H2H . Anything else today? Sentence7: I am departing from Broxbourne and I would like the train to arrive by 10:00. What is the price for this? Sentence8: sure what day are you traveling? Sentence9: Have a great day. Sentence10: Please book that one for 8 people on Friday at 17:00. Sentence11: No thanks. I just need the price per ticket. Sentence12: The TR5570 train will work. Would you like me to book you passage? Sentence13: Okay thank you, I'm also looking for an Indian restaurant in the east that is expensive. Sentence14: I plan to travel on friday. Question: Who has spoken the sentence 6? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: I'm looking for a 0 star guesthouse in the north. Sentence2: We have 23 museums in Cambridge. Could you help me narrow down your search with an area or price range? Sentence3: Sure. Have a nice day. Sentence4: There is the City Centre North B and B. Would you like me to book this for you? Sentence5: You as well! Goodbye! Sentence6: Unfortunately, I don't have any guesthouses that are in the expensive range. Is there any other price range you would consider? Sentence7: Yes. I can go ahead and book that for you if you can give me the the days you'd like to stay. Sentence8: Unfortunately I was not able to book that time slot for you. is there another day you would like to try? Sentence9: Sure, Cambridge Artworks Museum is on Greens Road, post code cb13ef. Is there anything I else I can help you with today? Sentence10: Great! Thanks for using our service. Sentence11: How about one in the cheap price range? Sentence12: Howdy! I'd like to go to a museum. Sentence13: Okay, I was able to book you for 2 nights with 8 people at City Centre North B and B. Your reference number is NXW9XX08 . Is there anything else? Sentence14: Can you recommend an expensive guesthouse? Sentence15: Is that in the cheap price range? Sentence16: Can I book for 8 people for 3 nights starting Tuesday? Sentence17: Could you recommend one to me? I am not looking for one in particular. May i also have it's postcode? Sentence18: I believe that's your job, right? Could you book it for me? Sentence19: Looks like there's some confusion. I need the hotel on Tuesday, for 3 nights, and 8 people. If that doesn't work, try 2 nights instead. Sentence20: There are no zero star places in that area, can I checked another area for you or another star rating place? Sentence21: Thank you. No, that will be all. Sentence22: If you could, that would be awesome. Question: Who has spoken the sentence 4? (A) User (B) System

A:
Answer: (A) User
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