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

Example Input: Sentence1: Price range doesn't really matter, but I do want a 4-star place with free parking and internet. Sentence2: I have 19 hotels that match that criteria. please be more specific about the area of town where you'd like to stay Sentence3: Do you prefer a formal hotel, or a guesthouse? Sentence4: OK, what price point do you want me to look for? Sentence5: Booking was successful at the alexander bed and breakfast. Reference number is : MDB2AV4K Sentence6: i need a place to stay Sentence7: The area doesn't matter. Please book for 6 people on Saturday with 4 nights stay. Sentence8: Can you give me a suggestion for a hotel and make that reservation please? Thanks. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Okay, I've booked 4 tickets. Your reference number is FBZ6Z3NH . Can I help with anything else? Sentence2: the cambridge belfry is a cheap hotel. would you like me to make you a reservation? Sentence3: I don't have a preference, but I would like it to be rated 4 stars. Sentence4: Yes, can i book it for 4 people. Sentence5: Yes. I am also looking for a hotel that has free wifi and a 4 star rating. Sentence6: It is a hotel not guest house. Sentence7: welcome anytime you need us Sentence8: that is all for today and thanks for helping Sentence9: You are booked for 4 nights for 4 people starting on Friday at the Cambridge Belfry. Your reference number is FKV26SLF . May I help you with anything else? Sentence10: Yes, I would like a reservation. Sentence11: I would like it for 4 nights starting Monday for 4 people . Sentence12: Sorry, I want to stay in a guesthouse. Sentence13: What are your arrival details please? Sentence14: I see three options available. Two are expensive and one is cheap. What is your price preference? Sentence15: I appreciate everything. Have a great day. Bye. Sentence16: OK, we have many options for guesthouse in the cheap price range, including wifi. Is there an area you'd like to stay in? Sentence17: Where are you heading, and on what day? Sentence18: I would prefer the cheap one please. Sentence19: I don't think so but before I let you go, I just want to be sure, the cambridge belfry is a guest house, correct? Sentence20: Booking was successful. Reference number is : FKV26SLF Sentence21: Kings Lynn on Friday Sentence22: Can you help me find a train leaving after 12:15 departing from cambridge? Sentence23: thanks and welcome anytime Sentence24: TR8494 leaves at 13:11. Want to book? Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Yes, I need to book that for 8 people. Please send the reference number. Sentence2: The entrance fee is free for the museum is free, and the theater fee is unknown. Sentence3: I'd like to go from stansted airport to Cambridge. Sentence4: Booking was successful, the total fee is 80.8 GBP payable at the station . Reference number is : VHL6TYDF . Sentence5: Okay, thanks for that information. I would like to book a train as well. I'm leaving Tuesday after 16:00 from Cambridge. Sentence6: You're welcome goodbye. Sentence7: I am looking for places to go in town centre. What are some options? Sentence8: What are the entrance fees for all those locations? Sentence9: I have the Mumford Theatre at anglia ruskin enterprise, east road, or the fitzwilliam museum at trumpington street. Sentence10: TR8372 leaves at 16:24. Are you interested? Sentence11: Thank you! Goodbye. Sentence12: Alright, where would you like to go? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output:
Answer: (B) System