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

Example Input: Sentence1: Kymmoy is in the centre of town and the phone number is 01223 311911. May I help you with anything else? Sentence2: Thank you, I have all I need. Goodbye! Sentence3: What is the phone number and area? Sentence4: Is there any expensive restaurants in town serving Australian food? Sentence5: You're welcome. Thanks for your call! Goodbye. Sentence6: Kymmoy is an expensive asian oriental restraunt in town. Sentence7: I'm sorry, there are no Australian restaurants. Would you like another type of food? Sentence8: How about asian oriental food? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example 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
Example Output: Answer: (B) System

Example Input: Sentence1: Does the hotel offer free wifi? Sentence2: That is all I need today. Thank you. Sentence3: Would you be able to book the stay for four nights instead? Can i also get the reference number? Sentence4: Sadly I was unable to book you for that time period. Is there another day you'd like to check in, or possibly you could stay for a shorter time period? Sentence5: Sure thing there are 70 trains making that trip, what day and time would you like to go? Sentence6: You're welcome. Good-bye. Sentence7: Great, I think that will work. I need a room for myself for five days, starting Wed. Sentence8: No, as long as it arrives by 10:15. Sentence9: That will be great. I am also looking for a place to stay in the south part of town. Do you have any recommendations? Sentence10: There are 3 trains available. Do you have a preferred departure time? Sentence11: TR8813 departs london liverpool street at 7:39 and arrives in cambridge at 9:07. I can book tickets for you, if you like. Sentence12: Certainly, we have 3 guesthouse aylesbray lodge guest house, bridge guest house, rosa's bed and breakfast or the lensfield hotel. Which would you like? Sentence13: Yes, Rosa's does offer free wifi. Sentence14: Booking was successful for 4 nights at rosa's bed and breakfast . Your reference number is : 1G56HJK3 . Can I help you with anything else? Sentence15: Good day, I need help getting a train from London Liverpool street going all the way to Cambridge, can you help me? Sentence16: I need something in the cheap price range. Sentence17: Rosa's Bed and Breakfast fits that, would you like to book a room there? Sentence18: I would like to travel on Wednesday and arrive by 10:15. Can you help? Question: Who has spoken the sentence 15? (A) User (B) System
Example Output:
Answer: (B) System