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

Q: Sentence1: Hi, I'd like to book a train that leaves after 21:30 on Friday. Sentence2: You're very welcome! Enjoy your trip! Sentence3: There are 4 restaurants that serve gastropub cuisine. Do you have a location and/or price preference? Sentence4: Yes could you provide me with the travel time and arrival time as well please? Sentence5: Moderate price range please. Sentence6: Please, for 7 people at 13:00 on the same day. Sentence7: TR8202 is leaving cambridge at 22:01 would that work for you? Sentence8: I'll be leaving Cambridge and traveling to Birmingham New Street. Sentence9: Yes can we try the south? Sentence10: The travel time for the TR8202 is 163 minutes. The arrival time is 24:44. Is there anything else I can help you with? Sentence11: I'm also looking for a place to dine. The restaurant should serve gastropub food. Sentence12: Perfect, there's a place called The cow pizza kitchen and bar, would you like me to book it? Sentence13: Sure, where are you departing from and going to? Sentence14: How about centre? Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : BGGCS2UB Sentence16: Thank you so much. That's all I need today. Have a great day! Bye. Sentence17: Yes, there are 3! Price ranges are moderate and expensive. Does one of those suit you? Sentence18: I am sorry there are none in the South. There are 3 in the centre and 1 in the east. Will one of those area work for you? Question: Who has spoken the sentence 8? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: Okay. Sorry for the mix-up. Thanks for checking. Sentence2: The travel time is 105 minutes and the cost is 37.80 pounds. Sentence3: I'm looking for something in the expensive price range. Sentence4: I would like to recommend Ugly Duckling. Would you like me to make reservations for you? Sentence5: Yes, a table for 1 at 20:30. But could you check the train again? I need to leave from Liecester, not arrive there. Sentence6: No you have been a great help, thanks. Sentence7: TR6723 leaves on monday from cambridge arriving in leicester at 16:06. Would that work for you? Sentence8: Now that your reservation at Ugly Duckling is taken care of, is there anything else I can assist you with today? Sentence9: We have 77 options available. Is there a certain day you want to travel? Sentence10: I have your table for 1 booked at the Ugly Duckling, Monday at 20:30. The reference number is YDG81NJ5 . Just a moment while I check on the train. Sentence11: Yes, I'd like to leave on Monday, going to Cambridge from Leicester. Sentence12: It was a pleasure to help you. Thanks for using our service. Goodbye. Sentence13: Okay, I also need a Chinese restaurant in the centre, please. Sentence14: Could I have the travel time and price for that particular train? Sentence15: Yes I can book that for you if you would like. Sentence16: I have 10 restaurants in the centre area that have chinese. Do you have a certain price range in mind? Sentence17: Yes, that would be great. Thank you. Sentence18: I am looking for a train that leaves Cambridge going to Leicester arriving by 16:15 Question: Who has spoken the sentence 5? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Would you like to look into a hotel? Sentence2: bridge guest house is a 3 star guesthouse in the south part of town with free parking and wifi. Can I book it for you? Sentence3: TR4748 deperts at 13:17 and arrives 14:08 Sentence4: The travel time for TR4748 is 51 minutes. Sentence5: thanks! what is the travel time? Sentence6: You are very welcome. Good bye. Sentence7: I am going to Cambridge and arrive by 18:45. I need the train ID, travel time and departure time. Sentence8: I am planning a trip in Cambridge. Sentence9: Yes, please book that one. Sentence10: I'm sorry, I don't need to book it at this time but could you please provide me the phone number to Bridge guesthouse? Thanks Sentence11: uhm, no. that's your job, weirdo. also, i need a train. Sentence12: Thanks you too! Bye! Sentence13: Have a great day. Sentence14: Yes I would like to book that one. Sentence15: Where will you be travelling to? Sentence16: Ok, I do need a hotel after all. I need 3 stars and it should be moderately priced. Sentence17: There are some lovely 3-star guesthouses in Cambridge. Which area would you like results for? Sentence18: I don't have a preference. Why don't you pick one for me. Sentence19: Thank you. That is all that I need for today. Sentence20: 01223247942. What other info may I provide about the Guest house? Question: Who has spoken the sentence 5? (A) User (B) System

A:
Answer: (B) System
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