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

[EX Q]: Sentence1: Okay. Can you tell me how much it costs to get in? Sentence2: No thank you, that is everything. Sentence3: I am looking for an architecture attraction somewhere in Cambridge. Sentence4: You're welcome. Have a good day! Sentence5: There are 5 different attractions all located in the centre of the city. I'd recommend holy trinity church. Sentence6: The vehicle you will be expecting is a black Tesla . The contact number is 07726876557. Anything else you need? Sentence7: Your hotel is booked starting Wednesday and your reference number is PADGS18 . May I assist you with anything else today? Sentence8: I have booked you a taxi that will pick you up at 1:15 from Holy Trinity Church. Would you like the car type and contact number? Sentence9: Yes, what can you tell me about a hotel called the Warkworth House? Sentence10: I would like to book it for 8 people for 2 nights starting on wednesday. Sentence11: Yes, please, that would be nice. Sentence12: It is free. Is there anything else that I can help you with? Sentence13: Actually, yes. I need a taxi to pick me up from Holy Trinity Church at 1:15 and take me to the hotel. Sentence14: Hey, the Warkworth is in the East part of town, it's a four star hotel with moderate pricing. What can I tell you about it? Question: Who has spoken the sentence 10? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Yes I would. Sentence2: The phone number is 01223312112. Do you need the postcode? Sentence3: You're welcome, and you have a nice day as well! Sentence4: Can you tell me anything about cafe jello gallery? Sentence5: I think that could work please make a booking for 6 people Sentence6: There are 10 trains that day. Is there a particular time you'd like to leave or arrive? Sentence7: i would like to arrive after 2:00 in the afternoon. Sentence8: Yes, the Cafe Jello Gallery is a museum located at 13 magdalene street in the west side of town. Would you also like their phone number? Sentence9: Booking was successful! Your reference number is GXIE5O8F . You have to pay 26.4 GBP at the station. Sentence10: No, but I am looking for a train from Ely on Thursday. Sentence11: Thank you very much that is all I needed. Have a good day. Sentence12: We have the TR0813 that arrives at 11:52 on thursday. Does that work? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Where will you be going? Sentence2: Yes, thanks! Sentence3: Thank you, I hope you have a good day as well! Sentence4: Are there restaurants in the city centre which serve North American cuisine? Sentence5: That's just perfect. Can you buy our tickets? Same group of people as the gourmet burger kitchen. Sentence6: Have a good day. Thank you for using our service. Sentence7: Train ID TR1898 will have you arriving at Stevenage at 14:10. It leaves Cambridge at 13:21. Sentence8: There is one expensive restaurant called gourmet burger kitchen would you like me to book that for you? Sentence9: I have purchased 8 tickets for you. The reference number is PWMD3SIU . Sentence10: What day and time would you like me to book it? Sentence11: Your booking was successful. The table will be reserved for 15 minutes only. Your reference number is HJCYIRG6 . Can I help you with anything else? Sentence12: Yes. I am looking for a train that departs from Cambridge on Monday. Sentence13: I need it booked for 8 people on Sunday at 15:45. I'd also like to have the reference number. Sentence14: Thank you that is all I needed today. Sentence15: I need to get to Stevenage by 16:45. Sentence16: It's been a pleasure. Good day and goodbye. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]:
Answer: (A) User