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

Sentence1: yes book for 4 people and 5 nights from sunday Sentence2: I hope you have a great stay. Goodbye. Sentence3: I would prefer a college in town centre. I'll need the phone and address also. Sentence4: I am also looking for a place to stay in the centre. Sentence5: No that will be it thank you for your help. Sentence6: Booking was successful. Reference number is : 7RA903FR . Can I help with anything else today? Sentence7: Ok, there are 13 to choose from. Some have entrance fees. Sentence8: I'm looking for an attraction in the category of college in the center of town Sentence9: I have the cityroomz hotel in the center. Would you like me to make a booking for you? Sentence10: Moderate range please. Sentence11: What price range you would like? Sentence12: Sure thing, Downing college is located at regent street and phone is 01223334860 anything else I can assist with? Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: It looks like there are hourly trains starting at 5:09. Did you have a particular day and time in mind? Sentence2: Thanks for the help. Sentence3: Will you train arriving at 07:54 work ok for you? Sentence4: Yes I need it booked for 2 people please. Sentence5: Unfortunately, there are no other Italian restaurants in the east. Would you like me to find you one in another area? Sentence6: Is the pizza hut in the moderate price range? Sentence7: I've successfully booked 2 tickets for you, the reference number is 9FE8N16G . Sentence8: I am looking for an Italian restaurant in the east. Sentence9: Pizza hut fen ditton matches your description. Sentence10: I guess it'll have to do. Can you book us a table for 2 on Wednesday at 14:00 please? Sentence11: Uh, no pizza hut's please. Something more classy please. Sentence12: Absolutely! To start, let me get more details. What are your desired departure and arrival cities? Sentence13: Thanks so much! Can you help me with train tickets too? Sentence14: Yes, it is. Should I book it for you? Sentence15: Yes, I'd like to book the train for Wednesday and I want to arrive in Cambridge by 08:30. Sentence16: Booking was successful. The table will be reserved for 15 minutes.Reference number is : H4BTTI6P . Sentence17: The train should go to cambridge and should depart from leicester. Sentence18: Have a great day! Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: I need a train ticket from cambridge to ely. I want to arrive at least by 21:15, can I get the reference # too please? Sentence2: Yes, for myself and 4 nights starting tuesday Sentence3: The price does not matter. Sentence4: Okay! How many people would you like me to book a train for? Sentence5: arrive by 21:15 for the same group of people. and I need a reference number Sentence6: Would you like me to book it for you? Sentence7: yes please. Can I get the reference number? Sentence8: I have booked you on the train leaving Cambridge at 19:50. Your will arrive at 20:07 and your reference number is 7776W8DF . Sentence9: I recommend the Warkworth House at Warkworth Terrace. Would you like me to book this for you? Sentence10: There are 8 trains that would get you there by 21:15. What time would you like to depart Cambridge? Sentence11: What day would you be traveling? Sentence12: Can I look up anything else for you today? Sentence13: Yes it has free wifi. Would you like me to book it for you? Sentence14: Hi. Can you help me find an east hotel? Sentence15: Sure, did you need anything else specifically? Sentence16: Thank you so much for your help. Sentence17: I will be traveling on tuesday. Sentence18: No, it does not matter. I am also looking a for place with free parking. Sentence19: That is all for now. Thank you for all your help. Sentence20: We have six four star guesthouses on the east side. Does price matter? Sentence21: You are all set, the reference number is ZI27S8E2, any further questions? Sentence22: I would like something with 4 or 5 stars. Sentence23: All have free parking! Moderately or cheaply priced? Sentence24: Does it also have free wifi? I need wifi too. Sentence25: Thank you for contacting us and have a nice day. Sentence26: I do not have a specific time to leave, thank you for asking. Question: Who has spoken the sentence 12? (A) User (B) System
Answer: (A) User