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: Yes try 15:30 on saturday and need a reference number thank you. Sentence2: I'd be happy to help you find something. Are you looking for something in town centre? There are cinemas, colleges, concert halls just to name a few. Sentence3: I'd love to try a local restaurant Sentence4: Just do what I say! I don't care what you choose! Give me the necessary information too. Then, get me a restaurant in the east that's expensive north indian food Sentence5: How about expensive restaurants that serve Indian food in the same area? Sentence6: Booking was successful. The table will be reserved for 15 minutes. Reference number is : MKRUJ1BR . Is there anything else I can do for you? Sentence7: I apologize but I was not able to book for that time. Would you like me to try another time slot? Sentence8: Try the Cambridge Museum of Technology which is a museum. The entrance fee is 5 pounds and postcode is cb58ld. There are no expensive North Indian restaurants in the east. Sentence9: First, I need an attraction in the east. Can you choose one and get me the entrance fee, postcode, and attraction type? Then I'd like an expensive restaurant in the east. Sentence10: I'm sorry, that's a lot of information for just one response. There are 10 attractions in the east - do you care what sort? Sentence11: We are happy to help. Thank you for using our service. Have a great day! Sentence12: I want the Pipasha for 1 at 16:30 on Saturday. Sentence13: We have many restaurants in town. What type of cuisine are you looking for, and what's your budget like? Sentence14: For expensive restaurants with Indian food, we have Pipasha, and the Sitar Tandoori. Sentence15: Great! That is everything I needed. Thank you! Sentence16: I'm looking for someplace to go in town. Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: No thank you. Can I have to phone number and postcode for that restaurant? Sentence2: I need a train to Kings Lynn. Sentence3: Thank you for using our service. Sentence4: The earliest train leaving after 17:00 on Friday leaves at 17:11. Would you like me to book this train for you? Sentence5: That would be TR9226 Sentence6: The phone number is 01223247877. It's located in the cb13nl postcode. Sentence7: Hmmm....how about an expensive restaurant serving gastropub food in the east? Sentence8: Thank you, goodbye. Sentence9: I am looking for a restaurant in the east that serves international food. Sentence10: No. There are two moderately priced restaurants with international cuisine in the centre of town. Would you like to hear about those? Sentence11: Book it, please. I need a single ticket. Sentence12: The the missing sock fits that criteria and is in the cheap price range. How else can I assist you? Sentence13: What day would you be wanting to travel? Sentence14: There's one restaurant that fits your requests, would you like me to book a reservation? Sentence15: Thanks again for the information! Sentence16: Have a great time. Sentence17: Have a great day as well. I think you'll love the Royal Standard. Sentence18: Thank you so much. Have a nice day! Sentence19: Friday please. From Cambridge leaving after 17:00 Sentence20: Can you give me the train ID on that one please? Sentence21: Is there one in the expensive? Sentence22: You have been booked for the train. Your reference number is 0UIC4MX9 . Can I help you with anything else? Question: Who has spoken the sentence 20? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Sure, what area of town would you like to stay in? Sentence2: There are entertainment attractions in the east, south, and west areas. Which would work best? Sentence3: Any area is fine Sentence4: cherry hinton hall and grounds located in the east is a very nice place to visit. Sentence5: what is your price range to narrow down on our choices Sentence6: lovell lodge has a moderate price range. is that it? Sentence7: Sounds good, I will give it a try, can I also get a place ot stay with free wifi and parking? Sentence8: I am visiting Cambridge and want to see some entertainment. Sentence9: Preferably in the north. Sentence10: There are 2 hotels with 2 stars. There are also 9 guesthouses with 0-, 3- or 4-stars. Which do you prefer? Sentence11: I think I'd choose one of the hotels. Either is fine, could you recommend one? And give me it's price range? Sentence12: Yes that will be all, thank you. Sentence13: I'm open to any price range as long as it meets everything else I need. Sentence14: you are welcome any time Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION:
Answer: (B) System