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: Okay, great. Have a safe trip. Goodbye. Sentence2: Yes please. I need it booked for 1 person for 2 nights starting tuesday. Can i get a reference number? Sentence3: I have found the allenbell guesthouse. It meets all of your criteria, is in the cheap price range, and provides internet and parking. Would you like me to book it? Sentence4: Thank you, that is it for today. Goodbye. Sentence5: The reference number for your booking is KEBFTR7I . Can I do anything else for you? Sentence6: I need a place with rated 4 stars in the east. Can you help me find one that like a guesthouse? Question: Who has spoken the sentence 1? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Does not matter but I do need free wifi and and a star of 0. Sentence2: Nope. That's all. Bye, thanks. Sentence3: I'll be arriving on Saturday and staying 3 nights. Sentence4: You're in luck, I have 9 guest houses available in the cheaper price range. What area of town would you like to stay in? Sentence5: The first train after 12:15 is TR5108 which leaves at 13:29, does that work for you? Sentence6: Thanks for calling Cambridge Town Info Centre. Have a great day. Goodbye. Sentence7: Your reference number is IREQ1EKT . Is there anything else I can help you with today? Sentence8: There are two guesthouses that meet your needs: city centre north b and b in the north and el shaddai in the centre. Would you like to book one of these? Sentence9: No problem, the fee is 64.64 and reference number is B5JCS4TL . Sentence10: Sounds perfect. Please book me enough tickets for the same group of people. Thanks Sentence11: There will be four people. Sentence12: I also need a train. It should leave Bishops stortford after 12:15, going to cambridge on saturday. Sentence13: Your train tickets are all booked! Your reference number is KOOYDYFY . Is there anything else I can help you with? Sentence14: I'm looking for a guesthouse to stay in that is cheap. Can you help me with that? Sentence15: Can we increase the amount of people to 8? Sentence16: I think that is it, got bookings for hotel and train. Sentence17: How many people are in your party and when will you be staying? Sentence18: And how many nights will you be staying? And what day are you arriving? Sentence19: North B and B sounds nice. Could you book this for me? Sentence20: Would you like me to look up anything else for you today? Question: Who has spoken the sentence 1? (A) User (B) System

A:
Answer: (B) System
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