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: Of course, when would you like your reservation to be and for how many people? Sentence2: Do you have a area preference? Sentence3: No that will be all. Sentence4: Excellent, I have booked you a table for 6 at 17:00. Tables are reserved for 15 minutes. The reference number is RI11SSDU . Sentence5: Does it have free wifi? Sentence6: Acorn guest house matches your requirements, would you like to book there? Sentence7: Do you need anything else? Sentence8: What are my choices for a moderate hotel? I don't need free parking. Sentence9: The hotel does have internet. Sentence10: I have results for 18 moderately priced places, what area are you looking to stay in? Sentence11: Great can I get their address, phone number, and postcode? Sentence12: I would like to make a reservation at Hotel Du Vin and Bistro. Sentence13: I have 2 European and 2 Modern European. Do you have a preference? Sentence14: Thank you for contacting Cambridge TownInfo Centre, enjoy you hotel stay and your dinner! Sentence15: I would like the restaurant to be in the Centre and serve European food. Sentence16: The acorn guest house is located at 154 chesterton road, postcode cb41da and the phone number is 01223353888. Sentence17: Yes, in the centre. Sentence18: Six people on Wednesday, at 17:00 Sentence19: Thank you so much for all your help! Sentence20: I am also looking for a restaurant. The restaurant should be in the same price range as the hotel and should serve European food. Sentence21: No particular area, I need a hotel with a 4 star rating. Sentence22: There are 2 to choose from: Hotel Du Vin and Bistro, and Galleria, and there are 2 others that are similar, but serve modern european. Do any of these sound good? Question: Who has spoken the sentence 10? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: The hotel should be in the moderate price range and should include free wifi. Sentence2: Booking was successful. Reference number is : WJFFGVWD . Is there anything else I can help you with? Sentence3: I've found several hotels in the moderate price range. Is there a specific area of town you're looking to stay in? Sentence4: How about the Acorn Guesthouse? Free wifi and moderate price range. Sentence5: Sure, book me for 2 people for 5 nights starting on Monday? Sentence6: That will be all. good bye. Sentence7: Yes, I'm looking to stay in the north. Sentence8: I am actually looking for a hotel. Is the Acorn Guesthouse listed in that type? Sentence9: No, it is not. How about Ashley hotel? Sentence10: I'm looking for lodgings that are moderately priced. Sentence11: Good bye, enjoy your stay. Sentence12: I've found 11 possibilities for you. Would you prefer a guest house or a traditional hotel? Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: Booking was unfortunately unsuccessful. Can we try another day or a differen't time slot? Sentence2: Yes, please book a table for 4 people at 19:00 on Sunday. Thank you. Sentence3: Do you have anyplace that serves Chinese food? Sentence4: OK I will go with Italian food and pick the Pizza hut cherry hinton. Thank you for your help. Sentence5: Have a great day! Sentence6: Good news! Your reservation has been booked for Sunday at 18:00 for 4 people. The reference number is YJ0B5W19 . Is there anything else I can help you with? Sentence7: There are 2 options. Pizza hut cherry hinton serves Italian food and Restaurant alimentum serves modern European food. Sentence8: Would you like me to book that for you? Sentence9: I'm sorry, there are no Chinese restaurants located in the south that is moderately priced. Sentence10: How about 18:00? Sentence11: Hello. Could you help me locate a good moderate restaurant in the south of the city? Sentence12: That is all! Thank you! Question: Who has spoken the sentence 10? (A) User (B) System


Output: Answer: (A) User