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

Example Input: Sentence1: No, surprise me. I will need the address and the area, though. Sentence2: I'll need one from leicester to cambridge on saturday, leaving after 16:30 Sentence3: No thanks, that will be all. Sentence4: Is there anything else I can help you with today? Sentence5: I don't need a reservation, I just need the address and the area. Sentence6: Alright. Thanks for using our service and have a nice day. Goodbye. Sentence7: It is the centre area and its address is Free School Lane City Centre Sentence8: Good afternoon! I'd like to visit an expensive european restaurant. Will you help me find one? Sentence9: Okay. Thank you. Sentence10: The train arrives at 18:54 and costs 30.24 pounds. Sentence11: Eraina is a very nice restaurant in the centre. How many in your party? And what day and time should I make your reservation for? Sentence12: What time does it arrive and the price? Sentence13: Where would you like to depart and arrive? Sentence14: Yes there are 5 restaurants that meet your requirements. Do you have a part of town or type of food you prefer? Sentence15: Great,I also need information on getting a train. Sentence16: I have a train for you that leaves at 17:09. Would you like me to book it? Question: Who has spoken the sentence 14? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Alright. I booked your train leaving Cambridge at 19:34 and arriving in Peterborough at 20:24. The reference number is A8T38EJZ . Sentence2: Cityroomz is a moderately priced hotel with internet. Would that work for you? Sentence3: What day are you traveling, and to which station? Sentence4: Thanks, have a good day. Sentence5: You, too. Goodbye. Sentence6: Okay. Call us back if you need me to book anything for you. Sentence7: Yes that will work. Can I get the hotel's phone number? Sentence8: We have 30 such entries. Do you have a time you'd like to leave by? Sentence9: Sure thing, their number is 01223304050. Is there anything else I can help you with today? Sentence10: Any time is fine as long as I can book for four people. I also need the reference number, please. Sentence11: I'll be traveling on wednesday, and I will be go to peterborough. Sentence12: There are 9 different hotels that have free wifi that aren't guesthouses, do you have a price range in mind? Sentence13: No particular price range but I would like it to be in the centre. Sentence14: Thanks. I'm also looking for a hotel (not a guesthouse) with free wifi. Sentence15: No, that will be all, thank you for your help! Sentence16: I need a train departing from cambridge and arriving by 20:45. Question: Who has spoken the sentence 14? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Thank you so much! Sentence2: I would like to book a train leaving on Monday going to London Liverpool street, can you help me with that please? Sentence3: I have one that leaves at 11:59 and arrives at London Liverpool Street at 13:27. Train ID TR7276 and it is 16.60 pounds Sentence4: The train should depart from cambridge and should arrive by 18:30. Sentence5: I believe you might enjoy Queens' college. It is very rich with history. It is 2.50 pounds to get in and it's postcode is cb39et. Sentence6: Thanks. I'd also like someplace to go in the west. Maybe some sort of attraction. Sentence7: Any train just arriving by 18:30, can I just get the train ID and price of one of those? Sentence8: You are very welcome! Have a pleasant day! Sentence9: I found ten, trains, what time would you like to leave or arrive by? Sentence10: There are 7 trains meeting those criteria. They call cost the same amount. When would you like to leave by? Sentence11: There are 13 different attractions in that area, mostly colleges and museums, do either of those options interest you? Sentence12: Anything in the west that seems interesting, I just need the postcode and entrance fee. Question: Who has spoken the sentence 9? (A) User (B) System
Example Output:
Answer: (B) System