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: Yes, can I please get the phone number? Sentence2: I would like to commute between Graffiti and Whale of a time. I will be heading to the attraction after eating. Sentence3: Where would you like to be picked up? Sentence4: Can you book it for me and get a reference number ? Sentence5: Just one person, no specific day and time. I'm also looking for a place to go in town in the same area of the restaurant. Sentence6: I have no south african restaurants i the expensive range. Would you like to try another type or price range? Sentence7: In the west area. Sentence8: Can you please recommend one and provide me their phone number? Sentence9: Yes, the phone number is 01954781018. Can I help with any other information today? Sentence10: Is there a certain area you would like? Sentence11: Are there any restaurants serving South African cuisine? Sentence12: Can you book it for me and get a reference number ? Sentence13: What time would you like to leave? Sentence14: There are many colleges and museums but I think you will really enjoy the entertainment called whale of a time. Would you like more information? Sentence15: How about something serving British food? Sentence16: We have more than 100 restaurants all over town. May I ask if you have a certain price range you prefer to stay within? Sentence17: Yes, I in am interested in an expensive restaurant. Thanks! Sentence18: Unfortunately I cannot book the restaurant for you without a day and time. Can you provide that for me please? Sentence19: I have 6 different places that serve British food. They are spread out throughout town. Did you have an area you prefer? Sentence20: Graffiti is a great restaurant in the west area. Would you like me to make reservations for you? Sentence21: Your reference number is 73H253CP . They will hold the table for 15-minutes. How else may I help you? Sentence22: Hi, I am traveling to Cambridge and am excited to see some local tourist attractions. I really need help with a restaurant though. Sentence23: I want to leave the attraction by 7:15. Sentence24: How about Tuesday at 7:30? Sentence25: What day do you wish to dine, at what time and how many people will there be? Sentence26: There are over a dozen different attractions in the west; do you have a particular type of activity in mind? Sentence27: Yes I need an attraction in the same area. Sentence28: Thank you. I am looking for a taxi to commute between the two places. Question: Who has spoken the sentence 13? (A) User (B) System

Output: Answer: (B) System


Input: Consider 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

Output: Answer: (B) System


Input: Consider Input: Sentence1: Ok, please reply if you need any further assistance. Sentence2: Sorry to hear that. If you need to reach the police in Parkside, Cambridge CB11JG, their number is 01223358966? Let me know if there is anything else I can do. Sentence3: I was just in a car accident and need help figuring out what to do next. Sentence4: I am calling the police and if I need anything else will contact you later. Goodbye. Question: Who has spoken the sentence 1? (A) User (B) System


Output: Answer: (B) System