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

Q: Sentence1: I am also looking for a place to stay at a 4 star hotel near the restaurant. Sentence2: I was able to book a room for 5 people, 5 nights. Your reference # is 5DD52JOS . Can I help you with anything else today? Sentence3: I prefer something cheap. Sentence4: Yes, for 5 nights on the same day. I also need the reference number. Thanks! Sentence5: Lets go with charlie chan, I would like to to book a table for 5 people at 11:00 on wednesday. Sentence6: Okay, have a great day! Sentence7: Need a place to dine, chinese near centre. Sentence8: The Alexander Bed and Breakfast is cheap, would you like to book it? Sentence9: There are three options, charlie chan, rice house and golden house. Can I book you for one of those? Sentence10: Are either option cheap? Sentence11: There are two located in the same area. alexander bed and breakfast and university arms hotel? Sentence12: I think that is all I need today. Thank you for all your help. Sentence13: I have 10 places. Would you like a certain price range? Sentence14: Your booking was successful, the reference number is B1FIKA09 . Question: Who has spoken the sentence 3? (A) User (B) System

A: Answer: (B) System
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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: I have many can I ask what area you would like it in? Sentence2: Sometimes we are provided information on the entrance fee, but unfortunately for this attraction we do not have it. Sentence3: Can I get information on 3 star hotels in the moderate price range? Sentence4: Absolutely, how many days will you need and the number of people in the room? Sentence5: The postcode is cb58nt. You will have to call to find out the entrance fee. The phone number is 01223902088. Sentence6: The Hobsons House is a guesthouse that is available. Would you like any additional information? Sentence7: No problem, I can afford it, why am I so worried? lol. That is everything I need, you were very helpful. Sentence8: What are some attractions on the east side? Is there a swimming pool available? Sentence9: The hotel should be of the guesthouse type and should be located in the west area. Sentence10: Can you book it for me? Sentence11: It was a pleasure helping you from the Cambridge TownInfo centre. Goodbye. Sentence12: Yes we have the abbey pool and astroturf pitch, is there anything else you need? Sentence13: Booking is confirmed. Reference number is : I57N7Y29 . May I assistance you with any additional assistance? Sentence14: oh you don't have that information? Sentence15: book it for 7 people and 2 nights starting from saturday. Sentence16: I need the postcodes and entrance fees please. Question: Who has spoken the sentence 2? (A) User (B) System

A:
Answer: (A) User
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