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

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
Answer: (A) User

Sentence1: I have 5 optionsd available,all have WiFi Sentence2: Do you know if any of them offer free wifi? Sentence3: Sure! We have 18 4 star guesthouses, would you like a specific part of town or price range? Sentence4: I'm needing a 4 star guest house today. Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: They do not have a fee. It is free to enter. Sentence2: Your tickets are all set, reference number is VKWMNP74 Sentence3: Where are you departing from? Sentence4: I need to arrive in Cambridge by 10:00 please Sentence5: Is there anything else I can look up for you today? Sentence6: No problem! Thanks for contacting the Cambridge TownInfo centre and have a great day! Sentence7: I am looking for a train that leaves for Cambridge on Monday. Sentence8: Thanks! I'm also looking for a good museum in the center of town. Sentence9: Train TR2987 will arrive in Cambridge by 9:52. Would you like to book it? Sentence10: Fantastic. Can you provide me with the address and phone number for the Castle Galleries, please? Sentence11: What is their entrance fee? Sentence12: Hello, I am departing from Ely. Sentence13: They are located at unit su43, grande arcade, saint andrews street and their phone number is 01223307402 Sentence14: There are several trains available, starting at 5:35 am and ending at 11:35 PM. What time would you prefer? Sentence15: No, that's it. Thank you. Sentence16: I have everything I need. Thanks! Sentence17: There are 11 museums, I would recommend castle galleries because it's free. Sentence18: Yes, please. I need 6 tickets and a reference number. Question: Who has spoken the sentence 13? (A) User (B) System

Answer: (B) System