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

[EX Q]: Sentence1: Not right now, but could I please get the address for the hotel? Sentence2: Certainly. All Saints Church is in postcode cb58bs. Can I help you with something else today? Sentence3: The Cambridge Belfry is located at back lane, cambourne. The phone number is 01954714600 and postcode cb236bw. Is the anything else I can help with? Sentence4: Thank you. Have a nice day as well. Good bye. Sentence5: Yes please, we'll be needing somewhere to stay the night. What can you tell me about the Cambridge Belfry? I've heard it's pretty nice, is that true? Sentence6: It is four stars. What else would you like to know? Sentence7: Hello i'm looking for places to go in cambridge please. Sentence8: No that's it, thank you. Sentence9: Does it have free parking? Sentence10: The Cineworld Cinema is located south at Cambridge leisure park, clifton way. Is there a specific activity you had in mind? Sentence11: I hope you enjoy your stay. Have a nice day. Sentence12: The Cambridge Belfry does have free parking. Would you like me to book it for you? Sentence13: I need a place in the centre. Sentence14: All Saints Church is in the centre area. The entrance fee is free. Would you like to book that? Sentence15: Yes, can I get the postcode. Sentence16: Have a nice day! Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[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: The Addenbrookes Hospital is located at Hills Rd, Cambridge Postcode CB20QQ. Sentence2: You are very welcome. Please let us know if you anything else? Sentence3: Thank you goodbye Sentence4: I need the location of a local hospital. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]:
Answer: (B) System