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: I need one ticket please and for leaving at 16:15,thank you. Sentence2: Thank you! That's all for me. Goodbye! Sentence3: I need a Tuesday train to from Peterbourough. Sentence4: Glad I could help. Let me know if there's ever anything else you need. Sentence5: Sure they do have internet and their phone number is 01223327978. Sentence6: Let me confirm this information: Are you leaving from Peterborough at around 16:15 and going to Cambridge on Tuesday? Sentence7: Right now I just need their phone number and to know if they have internet or not please. Sentence8: There's a train, TR5267, which leaves Peterborough at 16:19, arr. Cambridge 17:09. It's 16.50 pounds per ticket. Would you like to book it? Sentence9: Could you help me book a hotel called el shaddai? Sentence10: What day would you like to stay at the el shaddai? Sentence11: Yes, that's mostly right, but it should be after 16:15, please. Sentence12: Yes, please book it for one person and provide the reference number. Sentence13: All booked. Your reference number is LBUHU6M3 . Is there anything else I can help you with? Sentence14: If your are going to cambridge the first train leaves at 05:19 and the last at 07:19, any particular time and how many tickets please? Question: Who has spoken the sentence 10? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: I'm also looking for a restaurant in the centre of town that serves chinese food. Sentence2: I need to leave bishops stortford. Do you have a train going out? Sentence3: The Ugly Duckling sounds interesting! What's their address? Sentence4: I'd like to go to Cambridge and would be leaving on Thursday after 16:30. What is available then? Sentence5: Fantastic, have a great day! Sentence6: They are 10.10 pounds each Sentence7: I have 4 choice for you. The Ugly Duckling, Tang Chinese, HK Fusion, and the Sesame Restaurant and Bar. Does one of these sound like something you would like to try? Sentence8: No thank you. That is all. Sentence9: The Ugly Duckling is located at 12 St. Johns Street City Centre. Their postcode is cb21tw. Is there anything more I can help with? Sentence10: There's a train that leaves at 17:29 and arrives by 18:07. Does that sound okay? Sentence11: I am sure I do, where would you like to go? Sentence12: Yes, that would work. What is the price of a ticket? Sentence13: There are several Chinese restaurants in the centre of town. What price rnge are you looking for? Sentence14: I prefer something expensive. Question: Who has spoken the sentence 13? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: Yes I'll also need a train to Cambridge. Sentence2: I don't need you to book that, but I will need to know the departure time, please. Sentence3: I need to arrive by 14:15. Sentence4: To Cambridge, on Monday. I will be leaving Birmingham new street. Sentence5: I misspelled the place it is sesame, can you look that up again and book 3 poeple at 17:00 on monday if available? Sentence6: TR3387 arrives in cambridge by 13:23. Price is 75.10 pounds. Will that work for you? Would you like me to books seats? Sentence7: okay the first train leaves the station at 5:40 the last 09:40 Sentence8: I'm ready. Sentence9: Where would you like to go? Sentence10: I'm sorry but I was unable to find the restaurant you requested. Is there a type of food you were thinking about having? Sentence11: Ok! Have a great day! Sentence12: Gladly. I have a table reserved for you at the Sesame Restaurant and bar for Monday at 17:00. Your reference is 5OEIV10L . Is there anything else I can help you with? Sentence13: It is the Seasame Restaurant and Bar. Sentence14: I have the name of a restaurant that I need some help finding, whenever you're ready. Sentence15: The TR3387 leaves at 10:40. Sentence16: Great, thanks so much for your help. That's all I need today. Question: Who has spoken the sentence 10? (A) User (B) System


Output: Answer: (A) User