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

Example Input: Sentence1: it is located at Thompsons Lane Fen Ditton and you can reach them at 01223 362525 . Sentence2: La mimosa serves mediterranean food in the centre of town. Would you like their information? Sentence3: You're welcome, goodbye Sentence4: Yes, I'd like the address and phone number please. Sentence5: looking for mediterranean food Sentence6: Thank you! Goodbye. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: No, I'm not picky. Sentence2: I need a hotel with FREE parking Sentence3: The acorn house is moderately priced, 4 stars, and in the north. Sentence4: What is your arrival date and how many days will you be staying, please? Sentence5: I am looking for a place to stay. The hotel should have a star of 4 and should be in the type of guesthouse Sentence6: Thank you goodbye Sentence7: Okay. What part of town do you want to stay in? Sentence8: How about acorn house? They have excellent reviews. Sentence9: I'm sorry I don't need a reservation. Could you just confirm the price range, postcode and what area that is in? Sentence10: Thanks so much. I won't be needing anything further today. Sentence11: You read my mind. Yes, free parking. Sentence12: Do you have a specific pricerange you are looking for? Sentence13: Any part of town as long as it includes free parking. Sentence14: Yes, if Acorn House has free parking, please book my reservation. Question: Who has spoken the sentence 13? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: It really needs to depart from Norwich so I can arrive by 13:15 Sentence2: I was able to book that. The reference number is BY848B54 . 88 GBP is payable at the station. Sentence3: You are welcome. Goodbye. Sentence4: I'll take 5 tickets on the 11:16, please. Any may I have the reference number? Sentence5: Certainly, you can leave Norwich Wednesday at 10:16 and arrive by 11:35, or leave at 11:16 and arrive by 12:35. Which would you like? Sentence6: TR5725 From London kings cross to Cambridge Wednesday leaving at 05:17. Does that work for you? Sentence7: Nah, I'm not picky. Surprise me. I will need a phone number, address, and postcode, though. Sentence8: There are fifteen cheap locations in the centre of town, do you know what kind of food you're looking for? Sentence9: Alright, lets give Zizzi Cambridge a shot, their phone number is 01223365599, their postcode is cb21ab, and their address is 47-53 Regent Street. Sentence10: Great thank you I think I have all I need Sentence11: I am looking for a train going to Cambridge leaving on Wednesday. Sentence12: Thanks! I'm also looking for a place to dine in the center that's cheap. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User