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 please book it for one person for 2 nights starting friday. Sentence2: Sure. Your booking was successful and I have a reference number for you. It is IBDDDIAJ . Sentence3: Thank you for using our service today. Sentence4: I'm looking to get some info on a hotel called cityroomz. Sentence5: Thank you very much for your help. Have a great day. Sentence6: I've found it, would you like me to book it for you? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Thank you so much. The restaurant and train are all I need for now. Have a great day. Goodbye. Sentence2: I'll need to arrive by 11:00 and it should be going to london liverpool street. Sentence3: yeah i need a train too Sentence4: Train TR4259 arrives in London Liverpool Street at 9:27. It's the closest arrival time to 11:00. How many tickets would you like to book? Sentence5: Understood. You have a choice between Sala Thong and Bangkok City. Sentence6: Booking was successful. The table will be reserved for 15 minutes. Reference number is : RARTE3OH . is there anything else i can help you with? Sentence7: Can you help me find some Thai food to eat tonight? Sentence8: I would like 2 tickets please. Sentence9: Ok! Have a great day! Sentence10: I don't care where, just as long as it's expensive! Sentence11: What area of town would you prefer? Sentence12: Sala Thong sounds good. Please make a booking for 2 at 11:45 on Monday Sentence13: Where will you be leaving from? Sentence14: Let's pick something arriving between 11:00 and 10:30. It needs to depart from cambridge and leave on tuesday. Sentence15: There are 21 trains available. Would you like to narrow it down by departure site, day, or departure time? Sentence16: Your reservation for 2 on the TR4259 train was successful, the total fee is 33.2 GBP payable at the station. Your Reference number is : FNRSFZWB Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Please. I'll go with your recommendation. I'll need a room for 8 people, two nights starting sunday. Sentence2: There are many trains that fit your needs on Sunday. Do you have a departure time in mind? Sentence3: Great, thanks so much...that's all I need! Have a great day! Sentence4: Ok, what day are you traveling? Sentence5: The price is 7.84 pounds and travel time is only 47 minutes. Need me to book a ticket? Sentence6: I need a train leaving Kings Lynn and heading to Cambridge. Sentence7: I need to leave on Sunday please. Sentence8: I want to leave after 16:15. Sentence9: I booked the Acorn Guest House for you. Reference #: YM7DO6IC . Can I help you with anything else today? Sentence10: What is the total travel time and price? Sentence11: Thank you for using our system today! Sentence12: I've found seven that would work. All but one, are rated 4 stars. Would you like a recommendation? Sentence13: No thanks. I also need a guesthouse to stay in in the north. It should include free parking and I need it to be in the moderate price range. Sentence14: The first train leaving after 16:15 is TR7634 which leaves Kings Lynn at 17:11 and arrives in Cambridge by 17:58. Will this work for you? Question: Who has spoken the sentence 13? (A) User (B) System
Example Output:
Answer: (B) System