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

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 do not have all of that information at this time. Can I talk to you again when I know more? Sentence2: I am looking for a hotel with free parking in the North. Sentence3: Okay. Please help me book this guesthouse. Sentence4: Yes that is all right. Sentence5: Yep there are 5 guesthouses. Do you wanna just try acorn guest house? Sentence6: Are any of those 11 guesthouses? Sentence7: Does it offer free wifi? Sentence8: It's my pleasure. Have a nice trip! Sentence9: What day, number of nights, and number of people would you like to book for? Sentence10: Thank you for your help! Sentence11: Yes, it does have internet. Sentence12: There are 11 hotels that meet your needs. Would you like to narrow them down by price range? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: There are 19 trains to broxbourne on Monday leaving every hour starting at 05:01. Is there a specific time you'd like? Sentence2: All tickets from cambridge to broxbourne on that day cost 17.90 pounds each. Sentence3: No, thank you. That will be all for today. Thanks. Sentence4: I am also looking for a train that goes to broxbourne on monday. Sentence5: The one arriving closest to 13:00 is TR5971 leaving cambridge at 11:01 and arrives by 12:01 in broxbourne. Would you like to book a ticket? Sentence6: Just one, thank you! Please provide me with a reference number. Sentence7: Please book one. Sentence8: I would like to arrive in broxbourne by 13:00. Sentence9: Have a great day. Sentence10: I want a restaurant in the north of Cambridge that is within a moderate price range. Sentence11: There are two restaurants fitting your description, one is Chinese cuisine and one is Indian cuisine. Do you have a preference? Sentence12: Please book a table for 4 at the Chinese place at 12:30 on Sunday and give me the reference number. Sentence13: Okay you're all set for Sunday at 12:30. Your reference number is F5BTP63A . Can I help you find anything else? Sentence14: How many tickets do I need to reserve for your train? Sentence15: Can I just get the price on one of them? Sentence16: Booking was successful, the total fee is 17.89 GBP payable at the station. Reference number is : T1FGQFDJ . Can I help with anything else today? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System