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

Ex Input:
Sentence1: No that will be all! Thank you very much! Sentence2: Done! Your table will be reserved for 15 minutes. Your reference number is 5XFZM2KU . Is there anything else that I can help you with? Sentence3: Sure, they are all expensive though. I love Tandoori Palace located at 68 Histon Road Chesterton. Sentence4: Is there anything else you need? Sentence5: They do not have an entrance fee listed, but you can always call and find out. Sentence6: Thank you for using our services. Have a great day! Sentence7: Okay, thank you for your help! Sentence8: Nevermind - I don't need the taxis after all. Can you help me find a place called tenpin, instead? Sentence9: Can you book a reservation for 8 at 14:45 on Friday? Sentence10: Can you provide me with the telephone number and book two taxi cabs to the restaurant Sentence11: Can you tell me what their entrance fee is? Sentence12: is there anything else i can help you with? Sentence13: Tandoori Palace's phone number is 01223506055. Please give me the taxi departure day and time and I'll be more than happy to book one for you Sentence14: Can you help me find a indian restaurant in the west? Sentence15: Tenpin is an entertainment venue in the south. They are located at Cambridge Leisure Park, Clifton Way. Their postcode is cb17dy. Their phone number is 08715501010. Sentence16: That sounds perfect! Thank you. Question: Who has spoken the sentence 15? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: What area would you like to stay in? Sentence2: I need it for 7 people. 5 nights starting Sunday. Sentence3: Which of the 2 hotels should I book for you? Sentence4: Are there any amenities that you are looking for? Parking? Internet? Sentence5: TR2021 is leaving at 20:24 would that work for you? Sentence6: I don't really have a preference for area. But I would like it to be a hotel rather than a guesthouse. And I would love free parking. Sentence7: I'd like free parking. Sentence8: How about the Ashley Hotel? Sentence9: Booking was successful, the total fee is 56.56 GBP payable at the station . Reference number is : EZIAXWCQ . Can I help you with anything else? Sentence10: Great! I'm glad I could be of help. Have a good day. Sentence11: We have ashley hotel and lovell lodge, shall I book you for one of the two? Sentence12: I am also looking for a train departing from stansted airport going to cambridge on sunday. I need to leave after 19:30. Sentence13: I'm looking for a place to stay in Cambridge, moderate price for a hotel. Sentence14: Yes, please make a booking for my group. We'll all be traveling together. Sentence15: Thank you that is all I needed today. Sentence16: Booking was successful. Reference number is L1S8JNAC . Do you need anything else? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: I'd recommend jesus green outdoor pool. Would you like more information? Sentence2: Thanks. I hope your day is good too. Sentence3: Can you please provide me with the address, postcode and phone number? Sentence4: When is your arrival time? Sentence5: Lastly a taxi from the hotel to the pool please. Sentence6: I want to to leave the hotel by 10:30. Sentence7: thanks for inquiring with us and have a great day Sentence8: it sure is. thanks. Sentence9: Good. Glad to hear it. You can end this conversation now. I don't need anything else. Sentence10: The booking was successful. You have a reservation for 3 people, staying 4 nights a Acorn Guest House starting on Sunday. Your Reference number is : Z45I87LD . Sentence11: Thank you! I also need a swimming pool in the north area of Cambridge. Sentence12: Thank you for using our service. Sentence13: I am looking for information. Can you help me with a place to stay while I'm in town? Sentence14: That sounds perfect. I need a room for 3 people and 4 nights starting from sunday. Sentence15: Thanks. That is all for today. Sentence16: Do you have a arrival time in mind ? Sentence17: Your taxi have been booked for a black volvo and its contact number is 07055228719. Sentence18: The North part of town is where I want to go and include free parking and should have a star of 4 Sentence19: Sure! The address is between victoria road and the river, the postcode is cb43px, and the phone number is 01223302579. Sentence20: Okay, how about the Acorn Guest House? It's located on 154 chesterton road. Would you like me to make a reservation? Sentence21: I can help you. Which part of town? Sentence22: My arrival time will be 17:00. Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User