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

Q: Sentence1: Help me find a moderate priced british food place please. Sentence2: Your reference number is T790DS3O and the total fee is 35.2 GBP, which is payable at the station. Sentence3: We will have to start over now. Sentence4: Not at this time. Could I just get the phone number? Sentence5: Yes please book it for 8 people Sentence6: Yes, restaurant one seven is located in the centre. Sentence7: Perfect, could you just tell me their phone number? Sentence8: you are welcome any time Sentence9: I also need a train from Ely to Cambridge on Tuesday to arrive by 12:30. Sentence10: I will work on booking this and be right back with you. Sentence11: No, that should be all. thank you very much. Sentence12: Is that restaurant in the Centre? Sentence13: TR3412 leaves at 11:35 and arrives at 11:52. Will this one work for you? Sentence14: Yes, sorry. Tuesday, leaving Ely and getting to Cambridge by 11:30. Sentence15: Okay, well I suppose this is goodbye then. Sentence16: The phone number is 01223337766 Sentence17: Actually, I need to change my reservation. I need the train to arrive by 11:30 instead. Sentence18: Thank you for using the Cambridge TownInfo centre. Goodbye Sentence19: I need it for 8, as I said. Do you have the reference number? Sentence20: Your updated train is now TR4669. Your new reference number is 2T4NNGG9 . The total fee remains the same. The train departs at 09:35 and arrives at 09:52. Anything else? Sentence21: Their phone number is 01223337766. Do you need assistance with anything else? Sentence22: restaurant one seven is a nice place. Do you want to book? Question: Who has spoken the sentence 6? (A) User (B) System

A: Answer: (A) User
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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: No, I'm sorry, there are no Sri Lankan restaurants in the moderate or the expensive price range. Can I help you find something else? Sentence2: Yes, please try a different restaurant in the same area and price range. Sentence3: Okay great! Enjoy your lunch. Sentence4: Could you help me find a restaurant that's moderately priced, and services sri lankan cuisine? Sentence5: Nope, that should do it! Thanks! Sentence6: I'm sorry, I was unable to book the restaurant. Would you like to try a different restaurant? Sentence7: Yes, is there another restaurant serving lebanese food that you can recommend? Sentence8: I was able to book you at the oak bistro. your reference number is 11WH7X3K . Is there anything else I can help you with? Sentence9: I'm sorry, I don't see any moderately priced sri lankan restaurants. Would you like to try another sort of cuisine? Sentence10: Yes. Ali baba serves lebanese. May I book a table for you? Sentence11: yes see if there is booking for 6 people at 11:15 on thursday. Sentence12: Yes, are there are restaurants with lebanese cuisine? Sentence13: No I am sorry the ali baba is the only one. Another place maybe? Sentence14: Do you have a moderately priced restaurant serving lebanese food? Question: Who has spoken the sentence 5? (A) User (B) System

A:
Answer: (B) System
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