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

Ex Input:
Sentence1: No but I do need a train that will depart from peterborough and should go to cambridge. Sentence2: When would you like to depart or arrive? Sentence3: The ticket price is 16.50 pounds. Would you like me to book that for you? Sentence4: No than kyou. Sentence5: And how much is a ticket? Sentence6: The duration of the train ride is 50 minutes. Sentence7: TR8509 will leave Peterborough at 15:19 and arrive in Cambridge at 16:09. Would you like to book tickets on this train? Sentence8: Ok! Have a great day! Sentence9: Yes, there is. It's located in the centre area and has free admission. Would you like more information about it? Sentence10: Are you sure that there is absolutely nothing else that you need? Sentence11: No, I think I'll hold off on that. That's it for today. Thanks for your help. Have a great day. Sentence12: maybe, what's the duration of the train ride? Sentence13: I need the attraction type and address. Sentence14: I'd like to depart after 15:00 on thursday no preference on arrival. Sentence15: The Scott Polar Museum is a museum located on Lensfield Road. Would you also like their phone number? Sentence16: A friend told me about an attraction called the scott polar museum. Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: what is your price range for that? Sentence2: you selected attraction can you please correct so I can search. Sentence3: Can you give me the postcode and address please? Sentence4: What is the address for Gonville and Caius College? Sentence5: I'm happy to be of help. Take care. Goodbye. Sentence6: Pizza Express is a moderately priced Italian restaurant in the center of town. Do you need more information? Sentence7: The gonville caius college would be a nice attraction. Could I get the address please? Sentence8: I would recommend gonville and caius college, that is a nice campus in the centre area and best of all, admission is free, would you like more info? Sentence9: I need some information on a place called Pizza express. Sentence10: Thank you. I look forward to the day in town. Goodbye. Sentence11: I don't care about that but I would like the address and area of the college I visit. Sentence12: Yes, I'm looking for colleges to see in town. Can you help me with that? Sentence13: It is located on trinity street. Sentence14: Of course. The postcode is cb21db and it is at Regent Street City Centre. Can I help you with anything else today? Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: I have many to choose from. What area do you prefer? Sentence2: No specific area but i do need free wifi and need it to be in the moderate price range. Sentence3: Our reunion is on Tuesday so I want to leave that day. Sentence4: Kings lynn. Please give me the price, travel time, and train ID Sentence5: Can you help me find a train going to cambridge leaving after 21:15? Sentence6: Thank you for using our system today! Sentence7: The TR9704 train leaves Kings Lynn at 22:11. The travel time is 47 minutes. The price is 9.80 pounds. Do you know the area you'd like to stay? Sentence8: Great! I can help you with that. Where would you like to leave from? Sentence9: it doesn't matter book a room for 3 for 1 night the same day, and I'll need the reference number too please Sentence10: That's all I need, thank you so much! Have a nice day! Sentence11: I have two lines. 22:11 is the closest to your departure. Does that work for you? Sentence12: There are 11 locations, would you prefer one with parking included? Sentence13: Sounds good to me. Oh, and I'm also looking for a place to stay. Sentence14: Thanks so much that is great. Sentence15: No, area doesn't matter. I do want a 4 star guesthouse though. Sentence16: sure, do you know what day you're traveling? Sentence17: I will certainly use Cambridge TownInfo again. Goodbye. Sentence18: Okay i booked you at the Acorn and your reference number is G5FTA5L5 . Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User