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

Sentence1: Nothing in particular. Any recommendations? Sentence2: Yes, please coming in on monday for 5 nights for 3 people. Sentence3: We have amazing various of attractions in the centre area! What type of attraction are you looking for? Sentence4: I booked it for you. Your reference number is as follows: 5MM5C3UC . Is there anything else I can assist you with today? Sentence5: Any area is fine are there any with a 3 star rating? I don't need free parking or internet. Sentence6: Let me suggest the Museum of Archaeology and Anthropology. Their admission is free and the phone number is 01223333516. Sentence7: Would you like me to book it for you? Sentence8: Happy to help! Have a good trip! Sentence9: I have many moderate priced hotels available. What part of town would you prefer? Sentence10: alpha-milton guest house is in the north. Would you like me to book you a room? Sentence11: Can you book it for me and get a reference number ? Sentence12: i need a good place to go in the centre Sentence13: That will be all, thanks! Sentence14: I also need a moderate priced place to stay. Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: Yes, in the South, I am also looking for Romanian food. Sentence2: Sorry I don't have anything for that either. Sentence3: Can you try chinese? Sentence4: What is the address for the museum? Sentence5: You are booked at Nando's, a cheap portuguese restaurant in the south. Your reference number is ZS1PDFZA . Sentence6: Sorry I don't have anything for that either. Sentence7: Same area and price, but portuguese, anything for that? Sentence8: Does location matter? Sentence9: You choose as long as it is cheap. Could you book a table for 7 people at 15:45 on Wednesday? Sentence10: I found only the Byard Art musuem in the south. There's no entry fee. Phone number, 01223464646. Sentence11: You're welcome, let me know if I can assist with anything else. Sentence12: I need a place to eat that is cheap. Sentence13: There are no restaurants that meet what you're looking for. Is there anything else you'd like to try? Sentence14: Great! Thanks. Have a good night. Bye. Sentence15: it is in the north address is 14 king's parade and free admittance Sentence16: Are there any museums close to restaurant? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: I also need reservation for food. Sentence2: No, don't worry about it. I already got a reservation earlier. That is all I need. Sentence3: Sure, for 5 people at 13:45 on Friday. Sentence4: Hello, can you tell me about some Asian Oriental restaurants in the centre? Sentence5: I recommend j restaurant. Would you like a reservation? Sentence6: The TR8519 train leaves at 5:35 and arrives at 5:52 Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 9Z2BJHO4 Sentence8: Okay, what day are you traveling and what is your destination? Sentence9: make a booking for the same group of people. Sentence10: Would you please recommend one? Sentence11: Booking was successful, the total fee is 22 GBP payable at the station. Reference number is : J71IZZAE . Is there anything else I can assist you with today? Sentence12: I need to get from ely to cambridge, on that same Friday. Sentence13: I am will need a train. Sentence14: Thank you for using our service today. Sentence15: There are several. Would you like a list of all of them, or do you have a preferred price range? Sentence16: Do you know what kinda of food you want. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User