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

[EX Q]: Sentence1: The post code is cb23dz. Sentence2: I need to arrive at 17:45. Sentence3: I will travel Tuesday. Sentence4: Thats perfect. What is the price and travel time on this train? Sentence5: I also need a train, to cambridge, I want to arrive by 17:45. Sentence6: There's a train that leaves at 13:17, want that one? Sentence7: What day do you need the train? Sentence8: Can I help you with anything else? Sentence9: Is there a time you need to leave or arrive by? Sentence10: It is 17.90 pounds and takes 60 minutes. Would you like me to book this for you? Sentence11: No thanks, just gathering information, that is all I need. Sentence12: That is all I needed today. Sentence13: Could you please provide me with the postcode. Thank you! Sentence14: As long as it arrives in Cambridge by 17:45 and departs from Broxbourne that will work. Sentence15: Glad I could help come backk if you need anything else Sentence16: I am looking for information about the museum of archaeology and anthropology. Sentence17: I have one arriving at 7:32 will this work for you? Sentence18: That museum is located over at University of Cambridge, downing street. It's free to visit. Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I will take the phone number, entrance fee and address of the one you choose for me. Sentence2: I'm looking for some entertainment related places to go in the centre of Cambridge. Sentence3: Okay. How about a boat anywhere in town? Sentence4: I will choose for you the Cambridge punter, their phone number is 07807718591, they are found on 251a Chesterton road, they don't have an entrance fee. Sentence5: There are two boats in the centre, scudamores punting co and the cambridge punter. Would you like more information? Sentence6: I was unable to find any entertainment in the centre. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Please pick one and send me their address and postcode Sentence2: I really wanted to stay in the centre. How about a museum? Sentence3: I would really like it to be entertainment. Sentence4: Yes do you want it near the attraction ? Sentence5: Does architecture interest you? Sentence6: There are 11 museums in the centre is there a type of museum you prefer? Sentence7: I would like some information about interesting places to go in the center of town. Sentence8: Yes, can you help me find a place to eat? Sentence9: I'm sorry, we do not have any entertainment attractions in the city center. Would you like me to check in another part of the city? Sentence10: Whipple museum of the history of science is located at free school lane, postcode cb23rh. Is there anything else you need today? Question: Who has spoken the sentence 6? (A) User (B) System
[EX A]:
Answer: (A) User