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

[Q]: Sentence1: The Cambridge Belfry is a hotel on the west side and is inexpensive. Their phone number is 01954714600. Sentence2: Can I get their postcode please? Sentence3: What can you tell me about Finches Bed and Breakfast? What area are they in? Sentence4: Yes, I'll also need a taxi to commute between the two places. I'll need to arrive at the restaurant by the dining time. Sentence5: Chiquito restaurant and bar is in the south area, what time would you like me to book your 4 people for? Sentence6: That's great. Everything is set. Thank you for helping me. Goodbye. Sentence7: i booked your taxi. it will be a blue lexus coming. their phone number is 07566783718. Sentence8: The table has been booked. Your reference number is PQPB99PP . Can I help you with anything else? Sentence9: You're welcome, have a great day! Sentence10: yes four people for Friday at 17:30 Sentence11: Postal is cb30nd, and if you need to call them they can be reached at 01223276653, any thing else that I can assist with? Sentence12: Okay, how about Mexican food in the south? I'll be needing a table for 4 this Friday. Sentence13: finches bed and breakfast Is in the west, it is cheap, 4 star guesthouse, free internet and parking. Do you need anything else? Sentence14: I would like an inexpensive hotel on the west side of town. Question: Who has spoken the sentence 1? (A) User (B) System
[A]: Answer: (B) System


[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


[Q]: Sentence1: I show 10 Chinese restaurants located in the centre. Do you have a price range in mind? Sentence2: Booking was successful, the total fee is 75.09 GBP payable at the station . Reference number is : KXH54OG6 . Is there anything else I can help you with? Sentence3: Can I book it for 1 person at 14:15 on thursday? Sentence4: I was able to book you, the reference number is 83KK1ZQE, can I assist with anything else? Sentence5: I can't wait to eat there, thanks. I also need train information. I am going to birmingham new street and need to arrive by 09:45. Sentence6: Help me find a chinese place to dine in the centre please. Sentence7: Train TR8310 would be perfect for you shall i book it ? Sentence8: Yes, 1 ticket please. Sentence9: You are very welcome. I hope you enjoy your trip. Sentence10: There are 4 Chinese restaurant in the centre of town in the expensive price range. May I suggest HK Fusion? Sentence11: WIll you be travelling Thursday, as well? Sentence12: Thank you for using our services. Have a great trip! Sentence13: No, I need to leave on Friday. Sentence14: I would like to stay in the expensive price range. Sentence15: Thank you for your time. Sentence16: I am good to go now, thank you so much! Take care! Question: Who has spoken the sentence 3? (A) User (B) System
[A]:
Answer: (B) System