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: Hi, I'd like to book a train that leaves after 21:30 on Friday. Sentence2: You're very welcome! Enjoy your trip! Sentence3: There are 4 restaurants that serve gastropub cuisine. Do you have a location and/or price preference? Sentence4: Yes could you provide me with the travel time and arrival time as well please? Sentence5: Moderate price range please. Sentence6: Please, for 7 people at 13:00 on the same day. Sentence7: TR8202 is leaving cambridge at 22:01 would that work for you? Sentence8: I'll be leaving Cambridge and traveling to Birmingham New Street. Sentence9: Yes can we try the south? Sentence10: The travel time for the TR8202 is 163 minutes. The arrival time is 24:44. Is there anything else I can help you with? Sentence11: I'm also looking for a place to dine. The restaurant should serve gastropub food. Sentence12: Perfect, there's a place called The cow pizza kitchen and bar, would you like me to book it? Sentence13: Sure, where are you departing from and going to? Sentence14: How about centre? Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : BGGCS2UB Sentence16: Thank you so much. That's all I need today. Have a great day! Bye. Sentence17: Yes, there are 3! Price ranges are moderate and expensive. Does one of those suit you? Sentence18: I am sorry there are none in the South. There are 3 in the centre and 1 in the east. Will one of those area work for you? Question: Who has spoken the sentence 8? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: Thanks for the help, bye! Sentence2: I have many varying from moderate to expensive in price range. Do you have a preference? Sentence3: Have a great day! Sentence4: Certainly, I have booked your car, it will be a yellow skoda the contact number is 07839693090. Is there anything else I can assist with? Sentence5: Yes. I am looking for a college as a place to go in town. Sentence6: I recommend Tandoori Palace, would you like me to book a table for you? Sentence7: Tandoori Palace is located at 68 Histon Road Chesterton, postcode cb43le. Their phone number is 01223506055. Is there anything else I can help you with? Sentence8: I would recommend Clare Hall would you like to visit that? Sentence9: No, that is all. Thank you! Sentence10: Yes, please. Can you book a taxi for me? I'll be heading from Clare Hall to Tandoori Palace, and I'd like to be picked up at 18:15. Sentence11: I'm looking for a restaurant in the west that serves Indian food. Sentence12: I don't need a reservation, but could you give me their address, postcode, and phone number, please? Sentence13: What do you have in the expensive price range? Sentence14: Clare College is located on Trinity Lane in the west area of the city. The entrance fee is 2.50 pounds. Is there any other information I can get for you? Sentence15: Glad we could be assistance. Sentence16: Sure, but first I'll need to know the entrance fee, area, and address. Question: Who has spoken the sentence 11? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: welcome. at your service next time Sentence2: If you are in an accident and need help you can contact the police department at Parkside, Cambridge phone 01223358966 or the hospital on Hills Rd 01223245151. Sentence3: Thanks, that's all. Good bye. Sentence4: I need some help involving a problem with an automobile accident. Question: Who has spoken the sentence 1? (A) User (B) System


Output: Answer: (B) System