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

Sentence1: Which day would you like to leave? Sentence2: i want to leave on friday Sentence3: I'm looking for a decent place to dine in Cambridge please. Sentence4: Their phone number is 01223324033 and address is Regent Street City Centre. Was there anyting else I could help you with? Sentence5: I would like to book a train to ely, from cambridge. Sentence6: The train should leave after 11:15. Thanks Sentence7: We have 15 italian places Cambridge, do you have and needs as far as area and pricing? Sentence8: how about canapes food? Sentence9: What type of cuisine are you interested in? Sentence10: Sorry, we don't have any places serving canapes food. Would you like to search for something else? Sentence11: Could you please try for Italian ? Sentence12: No thanks. I just need the address, postcode, and phone number for this restaurant please. Sentence13: There are 10 trains that meet your criteria. Do you have a departure time or arrival time in mind? Sentence14: We have a great place on Regent Street City Centre called Pizza Express that you are sure to love. Would you like me to make reservations for you? Sentence15: Train TR0767 leaves Cambridge at 11:50 and arrives at ely at 12:07. The fare is 4.40 pounds. The travel time is 17 minutes. Do you want me to book this? Sentence16: Have a lovely day, goodbye! Sentence17: no thats all the information i needed. thanks Sentence18: Lets try for a moderately priced place in the centre. Question: Who has spoken the sentence 17? (A) User (B) System
Answer: (B) System

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
Answer: (A) User

Sentence1: I have many options. what area would you like to be in ? Sentence2: I found 44 things. what about all saints church? Sentence3: There are 2 hotels in the west and one in the centre. the one in the centre is cheap and the other two are expensive. Sentence4: I really have to go now. I'm going to be late for work. Thanks for the help. Goodbye. Sentence5: I have the Allenbell, East area, cheap price and a guesthouse. Shall I book that? Sentence6: What type of attractions are in the centre? Sentence7: Well I would like a 4-star place with free wifi, if possible. Sentence8: that is all for now thatk you. Sentence9: Most of the accommodations in Cambridge are guesthouses, so I'm sure we can find something for you. Do you have a certain area or price range in mind? Sentence10: It doesn't matter what area. I'll need free wifi. I need to book for 5 people for 2 nights starting Monday. I'll need the reference number please. Sentence11: I have found 18 guesthouses that would work. Perhaps we can narrow this down. What part of town would you like to stay in? Sentence12: Can we make that a hotel instead? Sentence13: Yes go ahead and book it for 5 people and two nights starting this Monday. Sentence14: Not really. What's your recommendation? Sentence15: That sounds cool! Can I get their address, postcode, and entrance fee? Sentence16: Okay, thanks! Are they both 4-star? Sentence17: I'd also like to find a guesthouse to stay in. Sentence18: Booking was successful. Reference number is : BD7V5LON . Sentence19: enjoy your stay Sentence20: They are all 4 star. Do you have a price preference? Sentence21: thank you again Sentence22: you are welcome Sentence23: The address is jesus lane, the post code is cb58bs, and it's free to enter. Is there anything else? Sentence24: thanks for using our services Sentence25: I'm sorry, I haven't been clear. I am looking for a guesthouse, not a hotel. Is there a 4-star guesthouse with free wifi? Sentence26: How about price. Is there a certain range you want to stay in? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User