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: No that will be all! Thank you very much! Sentence2: Done! Your table will be reserved for 15 minutes. Your reference number is 5XFZM2KU . Is there anything else that I can help you with? Sentence3: Sure, they are all expensive though. I love Tandoori Palace located at 68 Histon Road Chesterton. Sentence4: Is there anything else you need? Sentence5: They do not have an entrance fee listed, but you can always call and find out. Sentence6: Thank you for using our services. Have a great day! Sentence7: Okay, thank you for your help! Sentence8: Nevermind - I don't need the taxis after all. Can you help me find a place called tenpin, instead? Sentence9: Can you book a reservation for 8 at 14:45 on Friday? Sentence10: Can you provide me with the telephone number and book two taxi cabs to the restaurant Sentence11: Can you tell me what their entrance fee is? Sentence12: is there anything else i can help you with? Sentence13: Tandoori Palace's phone number is 01223506055. Please give me the taxi departure day and time and I'll be more than happy to book one for you Sentence14: Can you help me find a indian restaurant in the west? Sentence15: Tenpin is an entertainment venue in the south. They are located at Cambridge Leisure Park, Clifton Way. Their postcode is cb17dy. Their phone number is 08715501010. Sentence16: That sounds perfect! Thank you. Question: Who has spoken the sentence 15? (A) User (B) System

Output: Answer: (B) System

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 all of your help, you've been great! Sentence2: I'm so sorry but the only expensive Portuguese restaurants in Cambridge are in the south or the north. Can I interest you in one of those? Sentence3: Booked. The table will be reserved for 15 minutes. Reference number: 5I58PIAF . Sentence4: There are nine Indian restaurants located in the centre. Do you prefer the cheap or expensive price range? Sentence5: Lovely, I would like to book it for 3 people for 3 nights starting Wednesday please. Sentence6: I'd still prefer to keep it in the expensive price range if possible Sentence7: Yes, that is correct, I also need a reference number. Sentence8: No, I would like it to be in the centre. Are there any Indian Restaurants? Sentence9: I'm looking for a hotel called kirkwood house Sentence10: I need a ride to and from too please. I'll need the car type and contact number too please. Sentence11: It's my pleasure! Have a wonderful time! Sentence12: Good day! The kirkwood house is a guesthouse type hotel in the northern area located at 172 Chesterton Road and can be reached at the telephone number 01223306283. Sentence13: I have you booked, it is a red skoda, and their contact number is 07654958817 any other questions? Sentence14: No. I am interested in a booking for the same number of people on the same day at 16:00. Three people on Wednesday. Sentence15: I am looking for an expensive Portuguese restaurant. Sentence16: I just need to verify you want reservations for Curry Garden on Wednesday at 16:00 for 3. Is this correct? Sentence17: The Curry Garden is an restaurant that serves Indian food and is expensive. Do you need more information? Sentence18: Your booking was successful. The reference number is : HOGURFVC . Is there anything I can do to assist you? Question: Who has spoken the sentence 9? (A) User (B) System
Output: Answer: (B) System