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

Example Input: Sentence1: Great. Can you let me know the address and entrance fee? Sentence2: Is there a certain cuisine you are interested in eating? Sentence3: You are welcome. Thank you for using Cambridge TownInfo centre to plan your visit. Goodbye. Sentence4: There is not an expensive Austrian restaurant in the area. Is there another cuisine you'd like to try? Sentence5: How about cheap price range ? Sentence6: No, there are no places that serve Austrian food, anywhere. Sentence7: Thank you. That was all I needed today. Goodbye. Sentence8: Yes, I was hoping for Austrian food. Sentence9: Hello, I am interested in seeing the attractions on the west side of town. Can you assist me? Sentence10: No indian makes me get the runs. How about pizza? Sentence11: I'm afraid there aren't any Austrian restaurants in town at all, regardless of price. Is there anything else that could be acceptable? Sentence12: On the west side please Sentence13: Yes, Im looking for a nice high end expensive place to dine at in the same area. Sentence14: Clare hall is a college in the west part of town. Sentence15: Well, don't say I didn't warn you. We have 14 expensive Indian places in Cambridge, what side of town are you looking for? Sentence16: There are a few available but I suggest the Rice Boat. Would you like for me to book a table? Sentence17: The rice boat is located at 37 Newnham Road Newnham. Sentence18: The address is herschel road and it is free. Can I help you with anything else? Sentence19: do they serve austrian food? Sentence20: No, can you just give me the address, please? Sentence21: That's more information than I needed to know. I'm sure your supervisors wouldn't approve. I was looking for expensive indian food, please. Sentence22: What about an expensive Indian restaurant, then? Sentence23: How about an expensive indian restaurant in the west? Sentence24: there are 5 places in the west. if you want a suggestion, my friends always go to tandoori palace. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I have Gonville Hotel in centre area or The Lensfield hotel in the south area. What is your preference? Sentence2: I'm also looking for a hotel to stay in. Preferably a 3 star one. Sentence3: I'm planning to leave on Thursday. Sentence4: Which day are you planning to travel? Sentence5: The Gonville would be great, could you get me the phone number, price range, and postcode? Sentence6: They are in the expensive range, located on gonville place, postal code cb11ly, they are reachable at 01223366611, may I assist with anything else? Sentence7: There are several trains leaving Norwich, what day are you leaving and where are you going? I also need the time you want to leave or arrive. Sentence8: Yes the departure time is 15:16. I booked you for 8 on Train ID TR8040. The Reference number is : 1HY8AJ7Y . Sentence9: No thank you for everything. Sentence10: You are welcome. Have a good evening. Sentence11: I want a train leaving from norwich. Sentence12: As long as you mean a 15:16 departure, I'll take 8 tickets, please. Sentence13: I have a 5:16 departure to Cambridge that arrives at 16:36. Would that do? Sentence14: What area of town would you like? Do you have a price range in mind? Sentence15: I would like to leave after 14:30 and go to Cambridge, please. Sentence16: I don't have a preference for either, but I'd like it to be in the type of hotel. I'll also need free parking. Question: Who has spoken the sentence 15? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: We have some options available after that time, what day will you need the train? Sentence2: Glad I could be of help. Have a nice night. Goodbye. Sentence3: I am looking for a train that leaves after 18:45 and goes to Leicester. Sentence4: Thank you. I also need a place to dine in the Centre area that serves Asian Oriental food. Sentence5: Train TR9831 leaves at 19:21. would that be okay? Sentence6: That's all I need. Thank you. Sentence7: That would be fine. Can you book that for 6 people and give me the reference number? Sentence8: I was able to book it, reference number is OYBQSBZJ . Sentence9: No, could you please tell me the price range and postcode for all 4 in the Centre area? Sentence10: Sure! Dojo noodle bar, cb21rq. Yippee noodle bar is cb11lh. J restaurant is cb21dp and kymmoy is cb12as. Anything else? Sentence11: I need it to leave on Sunday from Cambridge. Sentence12: There are 4, all in centre city. Is there a particular price range you'd like? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output:
Answer: (A) User