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

Q: Sentence1: looking for a train going to Cambridge. Sentence2: How about TR3350 that leaves at 05:17? Sentence3: you can book it. get me the reference number too Sentence4: I am leaving on Sunday and need to arrive by 13:00 Sentence5: Thank you for using our services. Sentence6: Thank you that is all I needed. Sentence7: W8YHJKSV is the reference number Sentence8: What day and time are you wanting to travel? Question: Who has spoken the sentence 2? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: Phone is 01223505015 and postcode cb11ln. Would you like me to get you a table? Sentence2: No that's all. Thanks so much! Sentence3: I booked you on TR8399 arriving at 10:07. Booking was successful, the total fee is 17.6 GBP payable at the station . Reference number is : AVBKNMXQ . Sentence4: Thank you very much. Sentence5: I'm looking for an expensive restaurant that serves european food while I'm in Cambridge. Sentence6: Darry's Cookhouse and Wine Shop is located at 40270 King Street at the City Centre. Would you like their phone number? Sentence7: Yes, please, and their postcode as well. Sentence8: You are welcome. Enjoy your stay. Sentence9: No. But I need a train going to Ely. Sentence10: Where are you travelling from and what time? Sentence11: I am departing from cambridge on monday and I need to arrive to Ely by 11:15. Sentence12: You choose one please. I need it for 4 people. Sentence13: Is there anything else I can help you with? Sentence14: I have 3 trains available leaving at 06:07, 08:07, and 10:07. What time would you like to leave? Question: Who has spoken the sentence 6? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: Your total is 17.89 GBP. You can pay that at the station. Your reference number is RAIYCNJU . Sentence2: I need a train after 21:15. Sentence3: Ok great. What day will you be traveling? Sentence4: No, I have no preference. Just pick one. That will be fine. Sentence5: could you provide details for something in the cheap price range? Sentence6: I hope you not going to sit in your room by yourself for 5 days, are you sure that you dont want to know about a restaurant or attraction? Sentence7: thank you for using this service good bye Sentence8: I have the TR9688, which leaves at 12:32. Would you like to book this train? Sentence9: that is all i needed for today. thanks alot Sentence10: Perfect. I'll need a room for myself, for five nights on tuesday. Sentence11: I need tickets for one person. Sentence12: Actaully i will be on business so not out much but I do need a train, to cambridge leaving after 21:15 Sentence13: Great, thanks for that information on the train. Can you book for a train leaving after 21:15? Sentence14: How many tickets do you need? Sentence15: Yes, I need a train going to cambridge leaving after 21:15 on tuesday departing from broxbourne. Sentence16: The TR3112 arrives at 22:32. Sentence17: There are 33 cheap hotels with wifi in Cambridge. Do you have a particular area you are interested in? Sentence18: There are 3 trains leaving an hour apart starting at 21:32. The travel time is 60 minutes and costs 17.90 pounds. Would you like me to book one? Sentence19: I need a place to stay that has free wifi. Sentence20: Nope, that's it. Thanks! Sentence21: I have 32 places that offer wifi, do you have a price range preference? Sentence22: Perfect, you are all set for Alexander Bed and Breakfast on Tuesday, your reference number is 22DG5770 . Is there anything I can help with today? Sentence23: I recommend alexander bed and breakfast on 56 saint barnabas road would that due? Sentence24: No thank you. I just need the train ID and arrival time for one of them. Question: Who has spoken the sentence 17? (A) User (B) System

A:
Answer: (B) System
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