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

Example Input: Sentence1: A hotel that has free parking and in the north part of town. I would like one in the moderate price range. Sentence2: Yes, I'd like the phone number and postcode. Sentence3: The phone number is 01223902091 and the postcode is cb43ax. Sentence4: Where do I get info on hotels? Sentence5: The Riverboat Georgina would work. It's in the north. Do you need more information? Sentence6: Yes please book the The Ashley Hotel for 7 people and 2 nights starting from wednesday. Sentence7: Yeah, happy to assist. Let us know if there is anything else you need. Sentence8: Have a great day! Sentence9: I really have to run. I'm late for work. Goodbye. Sentence10: Okay thank you that is all I need. Sentence11: You can get information here, through our help desk. Sentence12: I was successful in making your reservation. Your reference number is 2W4KNZYJ . Is there anything else I can help you with? Sentence13: I would also like to find a boat attraction in the same area. Sentence14: The Ashley Hotel and the Lovell Lodge meet that criteria, would you like me to book one of them for you? Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: It doesn't matter, I just need to get there. Sentence2: I am sorry but that time is not available. Would you like to try another time or day perhaps? Sentence3: There is a restaurant called restaurant alimentum that meets your criteria. Sentence4: It's all booked, you're looking for a black volkswagen and their contact number is 07263669645. Sentence5: As a matter of fact, it appears all of the gastropubs in Cambridge have closed. Is there anything else that interests you? Sentence6: Have a great day! Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 8HB62Z6W . Is there anything else I can help you with? Sentence8: Sure. What time would you like to leave the restaurant? Sentence9: I am looking for a gastropub in the south. Sentence10: The address is cambridge leisure park, clifton way. Can I do anything else for you? Sentence11: Yes, I'd like to see some entertainment near the restaurant. Could you recommend me something good? Sentence12: Are there any Gastropubs in town? Sentence13: Yes, it is. Nusha is in the South as well. Sentence14: Yes, I would like to book a taxi from the restaurant to the entertainment. Sentence15: How about Tenpin in the south? Sentence16: Great, thank you so much for your help! That's everything I'll need today! Sentence17: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence18: That will do. Please get me their address. Sentence19: How about a modern European cuisine in the south area? Sentence20: Let's book that for 12:45 on Tuesday. It will be for 7 people. Sentence21: I'm sorry I couldn't find any Gastropubs in the South. Is there another type or area which you would like to try? Sentence22: Splendid! Thank you for all your help. That's all I need. Goodbye. Sentence23: Could you try 11:45 please? Sentence24: Is it located near Alimentum? I'm looking for something in the same area as the restaurant. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: i can certainly help with that. Where are you departing from? Sentence2: I am departing from cambridge and need to arrive by 12:00. Sentence3: Is there a time you want to leave by? Sentence4: We have over 400 trains that meet that criteria, what destination did you want to go to? Sentence5: You're welcome, and have a great day. Sentence6: Booking was successful, the total fee is 151.19 GBP payable at the station. Reference number is : A6Z2U9VN . Is there anything else I can help you with? Sentence7: No thanks, but I'd like some information on a train next. Sentence8: I have the TR7505 that will arrive by 11:06. Would you like me to book that for you? Sentence9: No, that should be all. Thank you! Sentence10: A hotel on the east side with free internet and parking if thats doable. Sentence11: I need a place to stay that includes parking Sentence12: I need the postcode too. Sentence13: The postcode for that is cb13lh. Do you want me to book a room now? Sentence14: Would you have a preference for an area or price? Sentence15: Yes! Please book for me and three friends. I need the reference number as well. Sentence16: I would like to arrive by 12:00, which ever one is closest to that. Sentence17: I have one hotel on the east that offers both free wifi and parking. It is the Express by Holiday Inn Cambridge. It is expensive and has a 2-star rating. Sentence18: This will be on a Friday and I'm going to Leicester. Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User