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

Q: Sentence1: Great. You should expect a blue volkswagen . You can contact them on 07261965496 Sentence2: Where will you be headed? Sentence3: Thank you! That's all I need for now. Sentence4: Great, I hope you have a great visit! Sentence5: I'll be headed to the Cherry Hinton, of course. Sentence6: THanks so much you have been a huge help. Sentence7: Can you help me find a moderately priced restaurant in the center of town? Sentence8: How about asian oriental that is in the moderate price range located in the centre of town? Sentence9: cool I would need the address, postcode, and phone number. Sentence10: There is no information on the entrance fee since there are a variety of facilities. Anything else I can help with? Sentence11: How about the cherry hinton village centre? Sentence12: Sure, I can help with that. Is there a certain cuisine you are looking for? Sentence13: That sounds perfect! Do you know the entrance fee? Sentence14: Have a nice day. Good bye. Sentence15: Okay, great. I'm also looking for an attraction in the same area. I'd like it to be multiple sports. Sentence16: No preference really. whatever you recommend Sentence17: Okay, the yippee noodle bar is at 40428 King Street City Centre postal code cb11lh and it's number is 01223518111. Is there anything else I can help you with? Sentence18: I need to book a taxi to commute between the 2 places. I want to leave the restaurant by 14:30. Question: Who has spoken the sentence 15? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Yes, that sounds like a good choice. Can you book it for me for 3 people starting Saturday? Thanks Sentence2: I was able to book the hotel for you. The reference number is BTTS9GYC . Is there anything else I can help you with today? Sentence3: There are eight accomodations of the hotel type with free parking. What part of town do you prefer? Sentence4: I need a train from norwich to get to the hotel by 16:30. Sentence5: The Cambridge Belfry is an inexpensive, 4 star option on the west side with free wifi and free parking. Sentence6: The west, please. And can I get free wifi? Sentence7: Okay I have a train tat gets to Cambridge at 15:35. Would you like me to book that for you? Sentence8: It doesn't really matter, just need to get there by 16:30. Sentence9: I want a place to stay. Find me a hotel that includes free parking. Sentence10: I have several available. When do you want to leave? Sentence11: I would like to stay for 3 nights. Sentence12: Sure, I can do that. How many nights would you like it for? Question: Who has spoken the sentence 6? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: Yes. I'd also like their phone number please. Sentence2: I would be happy to book TR2021 for you. The cost is 8.08 a ticket. How many tickets will you need? Sentence3: Would you like to book don pasquale pizzeria? It matches all of your latest criteria. Sentence4: Don Pasquale Pizzeria's phone number is 01223350106, what date, time, and number of people would you like to book? Sentence5: I'm looking for a restaurant the serves austrian food in the centre. Sentence6: Should I book this train for you? Sentence7: The 20:24 train from stansted arrives in cambridge at 20:52. It's a quick, 28-minute trip! Sentence8: I'm sorry, but no restaurants match your criteria. Would you like to broaden your search? Sentence9: You're welcome. Feel free to contact us again if you need any more information. Sentence10: There are 4 trains available one leaves at 20:24 would that work for you? Sentence11: Actually I need a train on Sunday, please. Sentence12: What about something in the expensive price range? Sentence13: The arrival time for TR2021 is 20:52. Sentence14: I will just need the arrival time please. Sentence15: What is the arrival time in Cambridge? Sentence16: That's actually all I need this afternoon. Thank you very much. Sentence17: The first train leaves from stansted airport on friday at 20:24. Would you like me to book it for you? Sentence18: Please book that train for me. Sentence19: What is the name of the stop where I need to get off for the restaurant? Sentence20: There are 33 expensive restaurants in the center of town, but no austrian ones. In fact, there are no austrian restaurants in all of cambridge. Sentence21: the train stop is cambridge. Sentence22: Ok, how about an expensive Italian restaurant around the centre? Sentence23: Alright, I have the earliest on Sunday leaving at 20:24 from Stansted Airport. Should I book this train for you? Sentence24: That's all the info I need on the pizzeria. I also need a train to leave after 20:15 and depart from stansted airport. Question: Who has spoken the sentence 13? (A) User (B) System

A:
Answer: (B) System
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