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: I'd like to find a 4 star guesthouse, please. Sentence2: The Place is a great nightclub in the south, located at 22 sidney street, post code cb23hg. The phone number is 01223324600. Is there anything else I can help you with? Sentence3: Yes, book it for me please. Thank you. Sentence4: It does not really matter. It will be just me starting on Friday for 3 nights. Sentence5: What attractions do you have in the south? Sentence6: I have found 18 guesthomes that match the criteria you listed. Is there any other specifications you have about the guesthouse (area,price range,etc) that you would like to tell me? Sentence7: Unfortunately, the booking was unsuccessful. Would you like to shorten your stay or try another place to stay? Sentence8: arbury lodge guesthouse is a moderately priced guesthouse in the north. How does that sound? Sentence9: The arbury lodge guesthouse is in the moderate price range. Sentence10: We have 8 types of attractions in the south? What type are you looking for? Sentence11: Sure, is there an area you prefer? Sentence12: I have to have free wifi Sentence13: I would like a room that is close to the nightclub for atleast 1 night up to 3 nights? Sentence14: Hmm, I'm not really sure. Do you happen to have any nightclubs? If not, what are my choices? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Booking was successful, the total fee is 24.64 GBP payable at the station .Reference number is : OKXUNQ4W Sentence2: I need help finding a cheap restaurant Sentence3: I would like to go to Ely please. Sentence4: I'm interested in European cuisine. Sentence5: Do you have a time you need to leave or arrive by? Sentence6: We have several options! Where would you like to go? Sentence7: Can you book me a table there for 7 on Friday at 19:45? Sentence8: We have the river bar steakhouse and grill in the centre area, would you like more information? Sentence9: The train should arrive by 13:00 and should depart from cambridge. Sentence10: I would like to leave in Saturday. Sentence11: Yes can you help me find a train as well? Sentence12: Thanks for the help, goodbye! Sentence13: Okay. Can you go ahead and book that train for 7 people please? And give me the reference number. Sentence14: You are welcome, enjoy your stay! Sentence15: What type of cuisine would you like? Sentence16: Sure! Where would you like to come from? What day of the week and what time? Sentence17: Yes. Your booking was successful. The table will be reserved for 15 minutes. Your reference number is ODB8T8HO . Is there anything else I can help with? Sentence18: Your best best is TR0721, leaving Cambridge at 11:50 and arriving Ely at 12:07. The trains only run every 2 hours on Saturdays. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System