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

Sentence1: Thank you for using our system today! Sentence2: I am coming to cambridge and heard about a bed and breakfast called finches. Sentence3: Yes, I would like to arrive before 5:00 PM. Sentence4: It is a lovely guesthouse on the west end boasting cheap prices and a 4 star rating! Would you like their address or phone number perhaps? Sentence5: I actually would like to book the hotel for 7 people starting on Tuesday for 3 nights. Sentence6: I'll be departing from cambridge and going to norwich. Sentence7: I apologize, I actually need to leave after 16:30 Sentence8: No problem, but I'm afraid there are no trains leaving after 16:30 and arriving by 17:00. Might I suggest TR7047, which leaves Cambridge at 16:36 and arrives in Norwich by 17:55? Sentence9: Is there a time you would like to arrive before? Sentence10: Can you also help me find a train on Fridya? Sentence11: Train TR7747 leaves at 15:36 and arrives in Norwich at 16:55. Would you like me to book you tickets? Sentence12: Thank you, no that will be all. Sentence13: OK, the booking for successful. The total is 17.6 GBP and the reference number is MIMOPEN1 . Is there anything else I can do for you? Sentence14: Yes, that sounds great. Please book that for me. Sentence15: I was able to book your party of 7 at Finches bed and breakfast for 3 nights. Your reference number is 4R76GWVJ . Can I help you with anything more today? Sentence16: Of course. There are many available Friday. Where will you be traveling to and from? Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: I have the TR4849 train leaving Ely at 13:35 on Monday. Sentence2: How about cityroomz? It is located in the centre of the city, is moderately priced, has 0 stars, and has free wifi. I think it would be perfect ofor you! Sentence3: Perfect, could you also assist me in finding a place to stay? Sentence4: What will be my arrival time in Cambridge and what is the ticket price, please? Sentence5: You're welcome. Have a great day. Good bye. Sentence6: You are booked and your reference number is QUJQMRK7 . Can I help you with anything else? Sentence7: That is everything, thank you for your help. Sentence8: From where will you be departing? Sentence9: I'm looking for a train that goes to cambridge, leaving after 12:30 on monday Sentence10: I am leaving from Ely. Sentence11: Oh I'm not picky on the area. I definitely need free wifi, moderate price, and 0 stars though. Sentence12: That's perfect I need it booked for 8 people for 5 nights starting on Monday. Sentence13: I sure can. What area would you like to stay? Sentence14: The price is 4.40 pounds. You will arrive at 13:52. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: I am looking for information in Cambridge Sentence2: I also need to find a train for Friday going to Cambridge from Norwich and leaving after 15:15. Sentence3: What about one in the moderate price range? Sentence4: TR8365 leaves norwich at 16:16 and will arrive in cambridge at 17:35. Would you like me to book you tickets for that train? Sentence5: Can I help you with anything else? Sentence6: Sure! the acorn guest house is a 4 star hotel with free parking and the address is 154 chesterton road. Sentence7: Might I recommend the Acorn Guest House? It meets your criteria. Would you like to make a booking? Sentence8: I was unable to find any matching places for that. Sentence9: Yes I do need the free wifi. Sentence10: I am looking for a guesthouse in the north. I would like it to be expensive and include free wifi. Sentence11: You're very welcome! Have a great day! Sentence12: Yes, that would be good. Can you just let me know the star rating of the hotel, whether they have free parking, and address? Thanks Sentence13: No need to book the tickets I just needed the info. Thats all I needed thanks Sentence14: No, that will be all. Thank you! Sentence15: Yes I have 8 guesthouses available in the moderate price range. Will you require free parking and wifi? Sentence16: I need some more specifics to help you. What type of information do you need? Question: Who has spoken the sentence 6? (A) User (B) System

Answer: (A) User