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

Input: Consider Input: Sentence1: I need help, i just been the victim of a robbery. Sentence2: You are most welcome! Sentence3: Sure, here it is: Parkside, Cambridge. Sentence4: I am not hurt but I need to get in touch with the police, can you send me the address? Sentence5: Are you hurt? Sentence6: Thank you for your help Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: Thank you for confirming that. One more detail: Did you have a particular time period in mind for your trip? Sentence2: I would like to travel on a Saturday. Sentence3: Yes. I want to arrive in Cambridge by 21:30. Sentence4: The Ruskin Gallery is a museum. Do you need anything else? Sentence5: There are numerous places in the Centre, can you tell me what type if place or activity you would like to do and maybe we can narrow it down? Sentence6: The Cambridge University Botanic Gardens are 4 pounds, and the Regency and Ruskin Galleries are free. Sentence7: The address for the regency gallery is 39 fitzroy street and the phone number is 01223365454. For ruskin gallery it's anglia ruskin university, east road, their number is 01245493131. Sentence8: I am looking for a train leaving broxbourne. Sentence9: The centre, please. Sentence10: I should have confirmed that I am indeed going to Cambridge. Sentence11: I need a place to go in town. Sentence12: I'm afraid we don't have a zoo, although if you like plants there is the Cambridge University Botanic Gardens. There are several galleries, such as Regency Gallery and Ruskin Gallery. Sentence13: You are welcome. Have a nice day. Goodbye. Sentence14: That will be all, thank you for your help. Sentence15: No I don't need to book a seat, but can you tell me the departure time. Sentence16: Please, I need the address and phone number for the Regency and Ruskin Galleries. Thanks. Sentence17: TR7846 will get you into Cambridge by 10:32. Would you like me to book a seat on that for you? Sentence18: I can help with that! Your destination will be cambridge I presume, what day would you like to travel? Sentence19: Yes I want to travel on a Saturday. Sentence20: Of course. The departure time for that train is 09:32 with an arrival time of 10:32. It's a 60 minute ride. Anything else I can help with? Sentence21: How about a zoo or art gallery? Sentence22: Where is your destination located? Sentence23: Are there entrance fees to these places? Sentence24: One more thing. Would you confirm the attraction type for the regency gallery and ruskin gallery? Sentence25: There are hourly trains from 5:32 onward. Did you have a particular time of day in mind? Sentence26: Did you have a specific place or area in mind? Question: Who has spoken the sentence 13? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: I have confirmed your taxi departing from allenbell at 21:15 to shanghai family restaurant. The contact number is 07779063338. Is there anything else we can help you with? Sentence2: Do you have a preference for the hotel's area or price range? Sentence3: The area doesn't really matter, but I would like something cheap. Sentence4: Hello I'm looking for the shanghai family restaurant. Sentence5: You're welcome. Good-bye. Sentence6: What is your destination? Sentence7: I have both the Autumn House and the Allenbell. They are both guesthouses on the east side of town with a 4 star rating. Should i book one for you? Sentence8: The booked Car type is a Red Toyota. Sentence9: I don't have a particular destination for my taxi. Sentence10: I'm sorry, but I cannot provide you information on the taxi without knowing your destination. Sentence11: The postcode is cb11dg. Sentence12: I need to get from the allenbell hotel to the shanghai family restaurant, please. Sentence13: Yes I would like to stay on the east side of town. Sentence14: Yes, I also need the car type. Thank You Sentence15: I have at least 8 hotels that might suit you. They all have internet, a 4 star rating and are in the cheap price range. Do you have a preference for what part of town you stay in? Sentence16: Can you find me a 4 star hotel? Sentence17: I'm sorry, but I don't have any hotels that match that criteria. Would you like to change your requirements? Sentence18: I will als require a taxi. I need to leave the hotel by 21:15. Can you provide he contact number and the type of car please. Sentence19: The Allenbell is fine. Could you book a stay for 7 people, starting on Tuesday, for 4 nights? I also need a reference number. Sentence20: Great I am also looking for a hotel with a 2 star rating that has free parking. Sentence21: Can you tell me the postcode? Sentence22: Yes I got it, what can I do for you sir? Sentence23: Thank you so much for all of your help, have a great day! Sentence24: Booking was successful. Reference number is : AVPKTYBJ . Question: Who has spoken the sentence 15? (A) User (B) System


Output: Answer: (B) System