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

Ex Input:
Sentence1: Yes, all of the listed entrance fees are 5 pounds. The Club Salsa is nice. Sentence2: Have fun! Goodbye! Sentence3: Club Salsa's address is 1 Station road and their phone number is 07782218745. Sentence4: No thanks. That's it. Sentence5: Location doesn't really matter. Is there an entrance fee? Sentence6: Yes, would you like to find a nightclub in the centre or south part of town? Most of them are in the centre. Sentence7: Club Salsa sounds right up my alley. Can I get the address and phone number please? Sentence8: Can you find information about nightclubs? Sentence9: You're welcome. Can I help you with anything else? Sentence10: Okay, great! Thanks for your help! Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: So, to clarify, you want a taxi from the University Arms to Bangkok City at 16:00, correct? Sentence2: No, that's all. Thank you. Sentence3: What price range and in what area? Sentence4: What type of hotel is the University Arms? Sentence5: its postcode is cb21ad. is that all? Sentence6: It's a 4 star hotel. In the centre and expensive as you requested. Sentence7: I am looking for an expensive place in the centre area with free wifi? Sentence8: I would like to book a taxi that can commute to both places, It would need to arrive by the booked time. Please provide contact and the car type. Sentence9: Your cuisine options are: British, European, Indian, and Thai. Sentence10: Yes I would like a table for 4 people at 16:00 on Saturday. Sentence11: Reference number is : FJVATJEE . Is there anything else? Sentence12: I'm sorry, make that the centre of town. A Thai restaurant would be fine. Sentence13: Yes, thank you. Sentence14: I found Bangkok City. Would you like me to book a table? Sentence15: Have a nice day. Sentence16: I am looking for something expensive in the west please. Sentence17: I have two options. The Gonville Hotel which has three stars, and the University Arms Hotel which has four stars. Would you like to make a booking? Sentence18: Done! You'll be picked up in a yellow Tesla, and the contact number is 07044662222. Can I help you with anything else? Sentence19: Can you help me locate a place to eat tonight? Sentence20: No thank you. What is the University Arms Hotel's postcode? Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Can you tell me some colleges that I could go to in town? Sentence2: Okay. There are four museums in that area. I recommend the Cambridge Artworks. It is free admission. Sentence3: I need reservations for 2 people at 13:30 on saturday. Sentence4: That sounds nice can I please get a postcode, entrance fee, and phone number. Sentence5: Have a nice day. Sentence6: I'm looking on the east side of town. Sentence7: Ok, how about a museum in the east? Sentence8: Sure! Booking was successful and your reference number is PMI1IGTJ . Sentence9: Sure, what specific area of town are you interested in? Sentence10: Okay, The Copper Kettle is located on 4 Kings Parade in the city centre. Would you like me to make a reservation for you? Sentence11: I would also like to book a taxi to commute between the two places. Sentence12: I am looking for a restaurant called The Copper Kettle. Sentence13: Thank you no that will be all! Sentence14: The phone number is 0122390268, postcode is cb13ef and there is no fee. May I help you with anything else? Sentence15: Your taxi is booked! You will be picked up in a black tesla and their contact number is 07542406962. Is there anything else I can help with? Sentence16: I am sorry, but I have not found any colleges in the specific area you requested. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System