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

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: Thats all for today! Thanks so much! Sentence2: TR1039 departs from Ely at 13:35, arriving in Cambridge by 13:52. Does this work for you? Sentence3: Sounds great, can you book it for 7 people for 4 nights starting saturday? Sentence4: The location doesn't matter, but I'd like it to be 4 stars. Sentence5: Thank you I also need to find a cheap guesthouse to stay at. Can you help me find one? Sentence6: Hi, I'm looking for a train going to Ely from Cambridge. Sentence7: Have a nice day. Sentence8: Okay! How about Allenbell? Sentence9: That sounds great. I would like to book it for 7 people. I will also need the reference number Sentence10: You have 9 options available. Would you like to narrow it down by location? Sentence11: Your room has been booked. Your reference number is ELA3CIDM . Sentence12: There are 70 possible trips. You can leave as early as 5:35 and as late as 23:35. The trip is 17 minutes. What time of day would you prefer? Sentence13: I need to leave on Wednesday after 12:00 please. Sentence14: Booking was successful, the total fee is 35.2 GBP payable at the station .Reference number is : JD1P380X . Question: Who has spoken the sentence 5? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: We have 4 available for you. The ADC Theatre is nice. Would you like more information about it or the others? Sentence2: Absolutely, I would love to help you with that! Do you have a specific area of town or a specific price point that you would like? Sentence3: The Avalon Guesthouse is in a very safe neighborhood in the north. Would you like me to book that for you? Sentence4: I have not decided yet. Sentence5: You and your party are booked at the Avalon. Your reference number A7T5CV0X . Can I help with anything else Sentence6: ADC Theater is located on Park Street in postcode cb58as. Is there anything else you need? Sentence7: Well that's ok we can book it later if you want. Is there anything else I can help you with? Sentence8: I am also looking for a nice theatre to visit in the centre of town. Sentence9: Yeah, could I get its address? Sentence10: No that was it. Thank you so much for your help. Sentence11: Of course I'd be happy to. How many people, when, and for how many days? Sentence12: Actually, I do believe I would like to book the Avalon Guesthouse. Can you help me with this? Sentence13: You're welcome. Enjoy your stay and visit to the theatre. Sentence14: Hi. Could you help me find a hotel for my trip? Sentence15: I would like a 4-star hotel in the north area. Oh, and no free parking. I'm concerned about safety when people park their cars next to the hotel! Sentence16: for 6 people for 5 nights starting on Monday Question: Who has spoken the sentence 7? (A) User (B) System

A:
Answer: (B) System
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