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: How about Caffe Uno, they are in the centre area. Their address is 32 Bridge Street City Centre and their phone number is 01223 448620. Sentence2: Perfect, thank you! Sentence3: I'm sorry, but I cannot find any expensive Lebanese restaurants. Sentence4: Thank you. Good bye Sentence5: Hello, I am looking for an expensive restaurant that serves Lebanese food. Sentence6: Can I get the address, phone number, and area of an Italian restaurant? Question: Who has spoken the sentence 5? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: Hello, I'm looking for an Italian restaurant on the East side. Thank you! Sentence2: Is this restaurant in the moderate price range? Sentence3: Let me know what else you need . Sentence4: Have a nice day then! Sentence5: Thank you for your help. Bye. Sentence6: Yes book a table for 8 on sunday at 19:30 please. Sentence7: No I will call back thank you. Sentence8: Can you find another restaurant int he same area and price range for me? Sentence9: I did not say to book rajmahal. What type of food does it serve? Sentence10: I was able to book rajmahal, reference number is KSFSKIC1 Sentence11: The address and phone for the Rajmahal is 7 Barnwell Road Fen Ditton cb58rg, 01223244955. Enjoy our city. Sentence12: They serve Indian food. Sentence13: Your reservation is made. The number is KSFSKIC1 . Sentence14: If there are not any Italian restaurants available in the area that are moderately priced, Rajmahal will be fine. Sentence15: I hope to. Goodbye. Sentence16: I show one called the PIZZA HUT FEN DITTON that serves Italian style food and is located on the east side in the Cambridge Retail Park Newmarket Road Fen Ditton Sentence17: It is listed in the moderate range. Would you like to book a reservation? Sentence18: I'm sorry, we were not able to book a table at that restaurant. Would you like me to find another restaurant? Question: Who has spoken the sentence 12? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: Yes, just a taxi form the hotel to the park. I want a really early morning to find a spot for the sunrise, so leaving at 02:15. Sentence2: Ashley hotel is located at 74 chesterton road and lovell lodge is located at 365 milton road. Sentence3: You are most welcome. I am glad to be helping you from the Cambridge TownInfo centre. Goodbye. Sentence4: What attractions are close to the Ashley hotel? Sentence5: I would recommend the Milton Country Park, there is no entrance fee and it's nearby. Can I help with anything else? Sentence6: We have 2 swimming pools, a park, and a boat nearby. What would you like more information on? Sentence7: Thanks a lot for your help! Sentence8: I am looking for a hotel in Cambridge. Sentence9: I want to be in the north. Sentence10: We have 9 in the area. Is there a particular area you would like to stay ? Sentence11: could I have the address please? Sentence12: What do you recommend? Sentence13: I show results for 2 moderate priced hotels, the Ashley and the Lovell. Both have internet and parking. Do you have a preference? Sentence14: I have booked you at Ashley hotel for your time requested! Your reference is 6WFHNVGM . Sentence15: I booked you a white toyota and the driver can be reached at 07502392207. Enjoy the park and if there's anything else you need, I'm here 24/7 Sentence16: I need to book for 5 people and 2 nights starting monday. Do either of those have that available? Question: Who has spoken the sentence 5? (A) User (B) System
Output: Answer: (B) System