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: No specific area. Sentence2: Thank you, goodbye. Sentence3: I have found no restaurants serving Christmas food in the expensive price range. Would you like a different type of food? Sentence4: phone number and address of Cambridge Lodge Restaurant please Sentence5: is there any area you prefer! Sentence6: I want to find an expensive restaurant serving christmas food. Sentence7: Thank you for using the Cambridge restaurant system. Goodbye. Sentence8: Are there European types of restaurants? Sentence9: Cambridge Lodge Restaurant is in the west part of town, at Cambridge Lodge Hotel 139 Huntingdon Road City Centre. Their phone number is 01223 355166. Sentence10: Yes, there are four: cambridge lodge restaurant, eraina, and michaelhouse cafe serve european food, with darrys cookhouse and wine shop serving modern european food Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: I'm sorry. I changed my mind. I don't want a guesthouse. Are there any hotels with 2 stars? Sentence2: Great that was all I needed today, thank you. Sentence3: Is there a particular area you would like to stay in? Sentence4: There isn't a guesthouse with 2 stars and free internet available. Is there another type of hotel I can look up for you? Sentence5: Great Glad I could be of help to you. Sentence6: I have you booked in the Ashley hotel. Your reference number is CW6YMT0B . Is there anything else I can do for you today? Sentence7: No, just any 2-star hotel with free wifi will do. Sentence8: Hi, I need a guest house please. Sentence9: Do you have a specific location you want to be? Sentence10: No, but I need free wifi and I would like a 2 star guesthouse please. Sentence11: I have 3 guesthouses all in the moderate price range. Would you like me to choose one for you? Sentence12: I found 3 for you all in the expensive price range. Can you please give me the details so that I may book it for you? Sentence13: Yes, how about a guesthouse with 3 stars and free wifi instead? Sentence14: I would like it for 6 people for 2 nights starting on Wednesday. Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: That's it. Thanks. Sentence2: Peking restaurant has good reviews would you like that? Sentence3: All right, what else can I help you with? Sentence4: No thank you, I don't need a reservation. Sentence5: I prefer Chinese food thanks. Sentence6: Can you locate an expensive restaurant in the south? Sentence7: Absolutely. The Peking Restaurant is located at 10 Homerton Street, City Centre. Their postcode is cb28nx. Can I reserve you a table by chance? Sentence8: You are welcome. Have a lovely day. Sentence9: That sounds good. Can I have the postcode and address please? Sentence10: I sure can. Do you prefer Chinese, Italian, Indian or Mexican food? Question: Who has spoken the sentence 6? (A) User (B) System

SOLUTION:
Answer: (A) User