TASK DEFINITION: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
PROBLEM: Sentence1: Eraina is in the centre of town located at Free School Lane City Centre. Their number is 01223 368786. Is there anything else I can do for you? Sentence2: Eraina in the centre is an expensive european restaurant. Would you like further information? Sentence3: what is the price range ? Sentence4: European food? Sentence5: Please recommend me an expensive restaurant that serves afghan food. Sentence6: They are in the expensive price range. Sentence7: What is the address, phone number, and area? Sentence8: I don't care where it is. Sentence9: Thank you. Good bye. Sentence10: I'm not finding any restaurants that match your request. Would you like to try a different price range or food type? Sentence11: There are four restaurants that serve European food. What part of town would you like? Sentence12: You are welcome, enjoy your stay. Good bye. Sentence13: That'll do. Thank you. Good bye. Sentence14: Thank you, and have a great day! Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: You're welcome, enjoy your day. Sentence2: How about Downing College? It has free admission and is located on Regent Street/ Sentence3: I'd like to visit a college in the center of town. Could you help me find something interesting? Sentence4: That sounds great! Can I have their phone number and postcode, please? Sentence5: No, that was all I needed to know. Thank you, you've been very helpful. Sentence6: Downing College's phone is 01223334860 and their postcode is cb21dq. Can I help you with anything else today? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: How many days and how many people? Sentence2: There is only 1 hotel in the area of west that is expensive. Would you like me search a different area? Sentence3: Okay. I booked you into the Gonville Hotel in the city center and your reference number is TSJA02XZ . Sentence4: Any area is fine, just in the same price range is what matters to me. Sentence5: Can I get it for three nights. There will be two of us. Sentence6: I cannot reserve a room at that time, perhaps another hotel? Sentence7: Thank you using the Cambridge TownInfo service, and enjoy your stay in our city! Sentence8: I am looking for an upscale hotel. Sentence9: I need the hotel to be in the west part of the city and have free parking please. Sentence10: Yes something else in the same price range please. Sentence11: No, thank you. That was all I needed. Sentence12: Is there anything else I can do for you today? Sentence13: The Huntington Marriott Hotel is the only expensive hotel in the west. Sentence14: If it has free parking, I would like to book it for wednesday please. Sentence15: Gonville hotel is in the expensive price range. Sentence16: Thank you so much for your help. Question: Who has spoken the sentence 8? (A) User (B) System

SOLUTION:
Answer: (A) User