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

Q: Sentence1: Have a great day! Sentence2: Let's go with City Centre North B and B. I need to book for 6 people, 2 nights, and starting on Saturday, please. Sentence3: I have listings for two,city centre north b and b and worth house. Sentence4: That sounds great. Can you book that for 6 people for me? Sentence5: TR3602 departs at 15:59 Monday and arrives at London Liverpool street by 17:27. Does this suit your needs? Sentence6: thank you that will be all Sentence7: I'm looking for a train leaving after 15:30 from cambridge. Sentence8: I'm also looking for a recommendation on a hotel with free parking in the north. Sentence9: Sure! I have 6 people booked for monday with reference number 3EBQSQSC and a total of 99.6 GBP. Can I help you with anything else? Sentence10: Do you have a price range? Sentence11: Yes. Your reservation was successful. The booking number is 4H91C8I3 . Sentence12: london liverpool street and should leave on monday Sentence13: Yes, I'd like to keep it cheap, please. I do need free wifi, though. Sentence14: There are over 623 trains leaving then. Where will you be going to? Question: Who has spoken the sentence 2? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: I'll take whichever one you recommend. I just need the phone number, postcode & address please. Sentence2: TR7786 will leave at 17:00, would that work for you? Sentence3: The travel time is 51 minutes. Can I help you with anything else? Sentence4: What time would you like to depart. I have anything from 5:00 to 23:00 Sentence5: Hello, can you help me find a train going to London Kings Cross? Sentence6: You're very welcome! I hope that you enjoy your time here! Thank you for contacting the Cambridge TownInfo centre. Sentence7: There are 3 restaurants that match what you're looking for, would you like me to book one for you? Sentence8: I would recommend the Ghandi. They are located at 72 Regent Street City Centre and can be reached at 01223353942, can I assist with anything else? Sentence9: I think that's everything I need. Thank you very much. Sentence10: Can I get the travel time for that as well? Sentence11: On Monday, from Cambridge. Sentence12: Yes, I apologize but can you give me the arrival time for train TR7786? Sentence13: Yes, please. Is there a restaurant with Indian food? Sentence14: Sure I can. The arrival time for that train is 17:51. Is there anything else I can do for you? Sentence15: I'd like to leave after 15:45, please. Sentence16: I want a cheap swedish restaurant in the centre, please. Sentence17: Sure! What day are you planning on leaving? Sentence18: I wasn't able to find a cheap swedish restaurant in the centre of time. Would you like me to try a different type of food? Question: Who has spoken the sentence 17? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: I have 19 places to stay with 4 stars and parking, which area would you prefer? Sentence2: OK, I don't need a room right now, but can I have the post code and phone number for Acorn? Sentence3: I need to find a 4 star hotel that also has free parking. Sentence4: Are there any guesthouses with free wifi? Sentence5: It is moderately priced. I don't have an exact price. Sentence6: I would like to be in the north area. Sentence7: How much per night? Sentence8: Thanks! That's all I needed today. Bye! Sentence9: Yes, all 7 guesthouses have internet available. What price range are you looking for? Sentence10: How about Acorn Guest House? Sentence11: There are no hotels that fit your criteria. However, there are 7 guesthouses available. Would you like me to book one of those for you? Sentence12: Sure. Postcode cb41da and phone number 01223353888. Is there anything else I can do for you? Sentence13: Thank you, have a great day. Sentence14: Oh, cool. It really doesn't matter. Which would you recommend? Question: Who has spoken the sentence 4? (A) User (B) System

A:
Answer: (A) User
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