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

[EX Q]: Sentence1: what is your price range for that? Sentence2: you selected attraction can you please correct so I can search. Sentence3: Can you give me the postcode and address please? Sentence4: What is the address for Gonville and Caius College? Sentence5: I'm happy to be of help. Take care. Goodbye. Sentence6: Pizza Express is a moderately priced Italian restaurant in the center of town. Do you need more information? Sentence7: The gonville caius college would be a nice attraction. Could I get the address please? Sentence8: I would recommend gonville and caius college, that is a nice campus in the centre area and best of all, admission is free, would you like more info? Sentence9: I need some information on a place called Pizza express. Sentence10: Thank you. I look forward to the day in town. Goodbye. Sentence11: I don't care about that but I would like the address and area of the college I visit. Sentence12: Yes, I'm looking for colleges to see in town. Can you help me with that? Sentence13: It is located on trinity street. Sentence14: Of course. The postcode is cb21db and it is at Regent Street City Centre. Can I help you with anything else today? Question: Who has spoken the sentence 9? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Hi, I'd like to book a train that leaves after 21:30 on Friday. Sentence2: You're very welcome! Enjoy your trip! Sentence3: There are 4 restaurants that serve gastropub cuisine. Do you have a location and/or price preference? Sentence4: Yes could you provide me with the travel time and arrival time as well please? Sentence5: Moderate price range please. Sentence6: Please, for 7 people at 13:00 on the same day. Sentence7: TR8202 is leaving cambridge at 22:01 would that work for you? Sentence8: I'll be leaving Cambridge and traveling to Birmingham New Street. Sentence9: Yes can we try the south? Sentence10: The travel time for the TR8202 is 163 minutes. The arrival time is 24:44. Is there anything else I can help you with? Sentence11: I'm also looking for a place to dine. The restaurant should serve gastropub food. Sentence12: Perfect, there's a place called The cow pizza kitchen and bar, would you like me to book it? Sentence13: Sure, where are you departing from and going to? Sentence14: How about centre? Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : BGGCS2UB Sentence16: Thank you so much. That's all I need today. Have a great day! Bye. Sentence17: Yes, there are 3! Price ranges are moderate and expensive. Does one of those suit you? Sentence18: I am sorry there are none in the South. There are 3 in the centre and 1 in the east. Will one of those area work for you? Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Kohinoor is in postcode cb12as. Can I help you with anything else? Sentence2: I'd like a train to Cambridge on Friday Sentence3: I have train TR3292 leaving norwich at 8:16 and arriving in cambridge at 9:35. Would you like to make a reservation for this train? Sentence4: Booking was successful, the total fee is 123.2 GBP payable at the station. Reference number is : 9F6CEFRF . Sentence5: 74 Mill Road City Centre is its address Sentence6: What is the post code please? Sentence7: No. That's all I need for now. Thank you so much. Sentence8: Okay, well, let me know when you have that. Sentence9: That sounds good. Can you book it for 7 people? Sentence10: Yes I will book it for 7 people, and give you the reference number. Sentence11: Yes, I would need to leave after 08:00 please. Sentence12: Your welcome. Please contact us again. Sentence13: Perfect, thank you! I'm also looking for a restaurant called Kohinoor. Can you help me with that as well? Sentence14: Sorry, I will be leaving from Norwich. Sentence15: Can I just confirm your departure station please? Sentence16: I can get you a ticket that leaves london kings cross at 05:17 or do you need a later time than that? Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]:
Answer: (B) System