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: Eraina is in the centre of town located at Free School Lane City Centre. Their number is 01223 368786. Is there anything else I can do for you? Sentence2: Eraina in the centre is an expensive european restaurant. Would you like further information? Sentence3: what is the price range ? Sentence4: European food? Sentence5: Please recommend me an expensive restaurant that serves afghan food. Sentence6: They are in the expensive price range. Sentence7: What is the address, phone number, and area? Sentence8: I don't care where it is. Sentence9: Thank you. Good bye. Sentence10: I'm not finding any restaurants that match your request. Would you like to try a different price range or food type? Sentence11: There are four restaurants that serve European food. What part of town would you like? Sentence12: You are welcome, enjoy your stay. Good bye. Sentence13: That'll do. Thank you. Good bye. Sentence14: Thank you, and have a great day! Question: Who has spoken the sentence 3? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: What area would you like to stay in? Sentence2: I need it for 7 people. 5 nights starting Sunday. Sentence3: Which of the 2 hotels should I book for you? Sentence4: Are there any amenities that you are looking for? Parking? Internet? Sentence5: TR2021 is leaving at 20:24 would that work for you? Sentence6: I don't really have a preference for area. But I would like it to be a hotel rather than a guesthouse. And I would love free parking. Sentence7: I'd like free parking. Sentence8: How about the Ashley Hotel? Sentence9: Booking was successful, the total fee is 56.56 GBP payable at the station . Reference number is : EZIAXWCQ . Can I help you with anything else? Sentence10: Great! I'm glad I could be of help. Have a good day. Sentence11: We have ashley hotel and lovell lodge, shall I book you for one of the two? Sentence12: I am also looking for a train departing from stansted airport going to cambridge on sunday. I need to leave after 19:30. Sentence13: I'm looking for a place to stay in Cambridge, moderate price for a hotel. Sentence14: Yes, please make a booking for my group. We'll all be traveling together. Sentence15: Thank you that is all I needed today. Sentence16: Booking was successful. Reference number is L1S8JNAC . Do you need anything else? Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: Yes please. can i have the address, phone number and postcode ? Sentence2: Here is the information you asked for. phone is 01223 244955 and address is at 7 Barnwell Road Fen Ditton, C.B 5, 8 R.G. Is there anything else I can help you with today? Sentence3: No, Thank you. Sentence4: There are 3 restaurants in the moderate price range and on the east part of town. Would you like Indian or Italian food? Sentence5: Rajmahal is a moderately priced Indian restaurant in the east part of town. Would you like more information? Sentence6: I'd like a moderately priced restaurant in the east part of town. Sentence7: Your welcome good bye Sentence8: I don't have a preference. Either one is fine. Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (B) System