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

Sentence1: The TR1156 leaves at 15:16. Will that work for you? Sentence2: There are 13 colleges in the centre of town. Would you prefer a college without an entrance fee? Sentence3: Yes can I have an arrival time please? Sentence4: I need a train on Saturday after 14:30. Sentence5: I need to travel to Norwich from Cambridge after 14:30. Sentence6: Okay thank you for your help. Sentence7: I'm looking for a place to in the centre, perhaps a college. Sentence8: No preference. Can you make a recommendation and give me the address, phone number, and entrance fee? Sentence9: The arrival time is 16:35. Sentence10: Thank you for using Cambridge TownInfo Centre. Sentence11: Where are you leaving from and traveling to? Sentence12: christ's college is great. the address is st andrews st, free entrance & their number is 01223334900, anything else? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: Could you also get me a taxi between the two that leaves the hotel by 6:15? Sentence2: There are 11 guesthouses that fit your criteria. Do you have a preference of north, south or east? Sentence3: The address is saint andrew's street. Sentence4: the taxi is booked. it's going to be a yellow tesla. their phone number is 07606976296. Sentence5: The area doesn't matter. I'll go with whatever guesthouse you recommend. Please make my reservation for 3 people, 5 nights, starting Thursday. Thanks. Sentence6: Thanks. I don't need anything else. Sentence7: What is the postcode? Sentence8: I have you booked at archway house, the reference number is N8IRHQYO, any further questions? Sentence9: I'm also looking for a moderately priced guesthouse, one with a four star rating. If it doesn't have free parking, that's fine. Sentence10: Can I recommend christ's college? Sentence11: Yes could I have the address and postcode of the college please. Sentence12: i am glad i have been of help. good day Sentence13: Have a great one. Thanks again for your help. Goodbye. Sentence14: There are 79 attractions, Do you have an idea of the type you're looking for? Sentence15: I need information on places to go and see. Sentence16: Yes, I would like the type of college. I will need the address and postcode please. Sentence17: Thank you, I'm glad I could be of help. Goodbye. Sentence18: The postcode is cb23bu. Can I help you find anything else today? Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: What day would you like to depart? And where will you be heading? Sentence2: No thank you. I am also looking for a restaurant called curry garden. Sentence3: I want to leave on Friday and go Cambridge. Sentence4: I found it would you like a reservation? Sentence5: Okay enjoy your dining and your visit in Cambridge. Sentence6: I need some information on a train going to cambridge. Sentence7: Which station will you be leaving from? Sentence8: No, that's fine, thank you. I'm also looking for a restaurant called the Curry Garden. Sentence9: Thanks so much. You have been very helpful. That is all I'll be needing for today. Bye. Sentence10: Curry Garden is an expensive Indian restaurant in the center of town, located at 106 Regent Street City Centre, cb21dp. Sentence11: There are 5 different trains for that day/time, but they are all 12.80 pounds. Would you like to book a ticket? Sentence12: I'll be leaving from Stevenage on Friday after 15:15. How much will that cost? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System