You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: Your reservation was successful and your reference number is UO8AN5FO . Is there anything else that I can help you with today? Sentence2: I am looking for the Alpha-Milton Guest house and would like to book it for 5 people for 2 nights starting Friday. Can you send me the reference please? Sentence3: That's all, thank you so much! Sentence4: Thank you for calling, enjoy! Goodbye. Sentence5: Sure, what is the name of the hotel? Sentence6: Hello. Can you help me in locating a certain hotel? Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: They are quite expensive . Sentence2: I want a restaurant in the south part of town and serves panasian food. Sentence3: Sorry what type of food do they serve? Sentence4: Thank you, goodbye! Sentence5: Sorry, there are no restaurants in the south part of town serving panasian food. Sentence6: They serve italian food. Sentence7: Frankie and Bennys serves Italian food in the south part of town. The phone number is 01223 412430, and the postcode is C.B 1, 7 D.Y. Sentence8: Thank you for your help. Good bye. Sentence9: italian food please. phone number and postcode please. Sentence10: what is the price range ? Question: Who has spoken the sentence 1? (A) User (B) System

Answer: Answer: (B) System

Question: Sentence1: Great. Thanks. Can you look up a restaurant for me? Sentence2: There are several trains that day, do you know what time you want to leave or arrive? Sentence3: Yeah, that sounds great. Sentence4: There is a train departing Cambridge at 15:21 and arriving in Cambridge at 17:06. Can I book that for you? Sentence5: Okay, I've booked you a seat on the 15:21 train on Tuesday. The total fee is 37.79 GBP payable at the station . Reference number is : NHFGUN35 . Sentence6: I want to go to Leicester and want to leave on Tuesday. Sentence7: What about the phone number? Sentence8: I need to get there by 17:15 Sentence9: Yes and their phone number is 01223363270. Sentence10: Thanks so much for your help. Sentence11: Hello, I'd like some information on a train departing from cambridge. Sentence12: 1. please also get me z restaurant called city stop restaurant.and give me phone number and postcode Sentence13: how many tickets would you like? Sentence14: Certainly. What is your destination and what day will you be leaving? Sentence15: Can you book it for me and get a reference number ? Sentence16: Sure, the address is Cambridge City Football Club Milton Road Chesterton cb41uy. And just to confirm, you wanted to book 1 ticket for that train? Question: Who has spoken the sentence 15? (A) User (B) System

Answer:
Answer: (B) System