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

Example Input: Sentence1: Yes as long as its in the same area and price range. I need a reference number too then please Sentence2: I'm looking for a cheap restaurant in the west area. Sentence3: I was unable to book that, would you like me to try something else? Sentence4: Okay that is all I need for now. Sentence5: I was able to get you into Thanh Binh. Your reference number is CLIBOL1Q . Sentence6: Let's go with La Margherita. Could you book a table for 2 people at 13:30 on Saturday? Sentence7: Thank you and goodbye. Sentence8: You have your choice of La Margherita, which serves Italian food, or Thanh Binh, which offers vietnamese cuisine. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

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: I'm sorry, the booking was unsuccessful. Would you like me to look for another restaurant? Sentence2: I am looking for an expensive Australian place. Sentence3: Can you please see if they have booking available for 8 people at 11:00 on thursday? Sentence4: Yes,please and one that serves turkish food. Sentence5: Sure, I've booked you at Anatolia, which also serves Turkish food, with reference number T70EAY2I . May I help with something else? Sentence6: Thank you for using our system! Sentence7: Yes, the meze bar restaurant fits that description. Would you like me to book that for you? Sentence8: How about on one that serves turkish food? Sentence9: You too! Thank you for your help. Sentence10: Great. Have a great day! Sentence11: I'm sorry. There are no Australian places in Cambridge. Would you like to try another cuisine type? Sentence12: No, that should be everything I need. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User