You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: Yes, all of the listed entrance fees are 5 pounds. The Club Salsa is nice. Sentence2: Have fun! Goodbye! Sentence3: Club Salsa's address is 1 Station road and their phone number is 07782218745. Sentence4: No thanks. That's it. Sentence5: Location doesn't really matter. Is there an entrance fee? Sentence6: Yes, would you like to find a nightclub in the centre or south part of town? Most of them are in the centre. Sentence7: Club Salsa sounds right up my alley. Can I get the address and phone number please? Sentence8: Can you find information about nightclubs? Sentence9: You're welcome. Can I help you with anything else? Sentence10: Okay, great! Thanks for your help! Question: Who has spoken the sentence 7? (A) User (B) System

Answer: Answer: (B) System

Question: Sentence1: Would that be London Liverpool or London Kings Cross? Sentence2: We don't have any trains going from Ely to London Liverpool or London Kings Cross. Do you need anything else? Sentence3: I will be leaving from Ely and going to london. Sentence4: Are you sure you don't have a preference? Sentence5: Either one is fine with me. Sentence6: On Saturday I need a train that will arrive by 21:45. Sentence7: Yes I'm sure. I need to book that for 5 people. Sentence8: Can you tell me where you will be departing from and heading to? Question: Who has spoken the sentence 6? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: I can recommend little Seoul. Sentence2: I am also looking for a restaurant. The restaurant should be in the centre and should be in the expensive price range. Sentence3: Oh, I am so sorry. I will be leaving Broxbourne, not Cambridge. Sentence4: Sounds great can I get the address? Sentence5: I need to take a train to here from Broxbourne, this will be on saturday. Sentence6: No problem! What time would you like to leeave by? Sentence7: You're welcome, have a great day! Sentence8: I want to leave after 8:00, please. Sentence9: The address for Little Seoul is 108 Regent Street City Centre Sentence10: The train should leave after 08:00 Sentence11: I have 19 trains from Cambridge to Broxbourne on Saturday. What time are you wanting to arrive by? Sentence12: how about train 1997? It leaves at 09:01. Sentence13: That would be great. Can you book me for 8 tickets? Sentence14: Did you have a specific kind of food in mind? Sentence15: No thank you that will be all Sentence16: Yes, hopefully Korean. I love it. Sentence17: Your Booking was successful, the total fee is 114.56 GBP payable at the station . The Reference number is EFGWY22I . Can I assist with anything else. Sentence18: TR9384 leaves Broxbourne at 8:32. Question: Who has spoken the sentence 11? (A) User (B) System

Answer:
Answer: (B) System