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

Sentence1: i am looking for information in Cambridge. Sentence2: I can certainly help you with that! What do you want to know? Sentence3: The hotel should have a star of 4 and should include free parking. Sentence4: I'd like to stay at a guesthouse that offers free wifi. Sentence5: The Alexander bed and breakfast is a great place. Do you need a reservation? Sentence6: Acorn Guest House would be perfect for your needs. Sentence7: yes, please. 6 people for 3 nights starting on thursday. Sentence8: Do you have a price range or area preference? Because if not, how about a and b guest house located in the east and moderately priced. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: That train departs at 05:29. Sentence2: It appears that the Curry Garden meets your needs! Would you like me to book that for you? Sentence3: There are many options for expensive dining. Sentence4: Yes, please make reservations for 5 people at 16:45 on Monday. Sentence5: Booking was successful. The table will be reserved for 15 minutes. Reference number is : J8918H0X . anything else i can help you with? Sentence6: What day will you travel? Sentence7: Thank you for contacting us and have a nice day. Sentence8: I would like to arrive by 11:00. Could you give me the departure time and train ID? Sentence9: Thank you. That is all that I need. Sentence10: Thanks. I also need a train from Bishops Stortford to Cambridge. Sentence11: Not really, as long as it is open on Monday and has room for 5 people. Sentence12: Is there a departure time? Sentence13: There are a number of expensive Indian options. Is there a specific part of town you were looking for? Sentence14: I will be traveling on Monday. Sentence15: I need a place to eat that is expensive. Sentence16: OKay, is there a certain time you need to leave? Sentence17: Specifically, I would like an Indian restaurant. Sentence18: I can suggest the TR4448 arriving by 06:07. Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: No, that's all. Thanks again for your help. Sentence2: I show five that fit your criteria. May I ask the location you are in? This would help refine our search. Sentence3: Thank you for using our service. Sentence4: Great Yes it is and thank you. Sentence5: La Margherita was unavailable. I was able to book you at Zizzi Cambridge which is in the same price range. Your reference number is QRJ5MP30 . Is this acceptable? Sentence6: Okay as long as it's in the same price range. Sentence7: Can you please help me find a cheap italian restaurant? Sentence8: If there is one that you know of that you recommend, that would be fine. I don't know any, so some guidance would be great. Sentence9: Would you like more details on any of the available restaurants before booking a table? Sentence10: It doesn't matter what area. Can you book a table for 2 people at 11:00 on Wednesday. Sentence11: How about la margherita? Sentence12: Will you be needing anything else today? Question: Who has spoken the sentence 7? (A) User (B) System

Answer: (B) System