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

Input: Consider Input: Sentence1: No, I'm actually looking for something in the north. Is there anything available there please? Sentence2: I've made the reservations for you. The reference number is NFKR3VXL . Sentence3: Hi, few questions. I am looking for a restaurant called the Little Seoul. Also, could you give me the phone numbers, address, and entrance fees for both those places? Sentence4: ok I have a black volvo booked for you Sentence5: Ok, thanks. Can you reserve the restaurant for me for 5 people at 14:30 on Sunday? Sentence6: Can I please get the taxi company's phone number in case I need it? Sentence7: you can reach them on 07704971911 Sentence8: Abbey pool and astroturf pitch is in the east part of town if that would work for you? Sentence9: Sure! Let me get the pool information first. I found one that is an outdoor pool and one that is a learner pool. Which would you prefer? Sentence10: The outdoor pool would be best. For the restaurant I need to reserve it for 5 people at 14:30 on sunday. Please give me the reference number of the reservation. Sentence11: Yes I need a taxi to get from the pool to the restaurant. Sentence12: You are welcome. Can I assist you with anything else? Sentence13: I'm looking to swim today. Is there anywhere I can go? Sentence14: the outdoor pool is called jesus green outdoor pool located at between victoria road and the river cb43px Sentence15: enjoy your time in Cambridge! Sentence16: Thank you so much for your help. Sentence17: Sure, there are two in the north. Would you like their information? Sentence18: Thank you. That was all I needed. Goodbye. Question: Who has spoken the sentence 1? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: 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

Output: Answer: (A) User

Input: Consider Input: Sentence1: I booked it for you. The reference number is TCBE0PUQ . Sentence2: Booked! Your reference number is: 4T6UFRYC . Can I help with anything else? Sentence3: Thank you, goodbye Sentence4: Enjoy the rest of your day! Sentence5: it is a moderate restaurant in the west. can i book for you? Sentence6: Yeah, what can you tell me about a restaurant called Meghna? Sentence7: I am looking for a train from Stevanage to Cambridge. Sentence8: Eww, Friday won't really work for me. Do you have anything on Thursday? Sentence9: Yes, please. I'd like a reservation for 4 on Thursday at 20:30. Sentence10: I have several options. They all leave on Friday; do you have a preferred departure time? Sentence11: There are 10 trains traveling on Thursday. The first train leaves at 05:54. Do you want to book this train or do you want a later departure time? Sentence12: That train sounds good, can you book it for 4 people? Question: Who has spoken the sentence 3? (A) User (B) System
Output: Answer: (B) System