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 as long as its in the same area and price range. I need a reference number too then please Sentence2: I'm looking for a cheap restaurant in the west area. Sentence3: I was unable to book that, would you like me to try something else? Sentence4: Okay that is all I need for now. Sentence5: I was able to get you into Thanh Binh. Your reference number is CLIBOL1Q . Sentence6: Let's go with La Margherita. Could you book a table for 2 people at 13:30 on Saturday? Sentence7: Thank you and goodbye. Sentence8: You have your choice of La Margherita, which serves Italian food, or Thanh Binh, which offers vietnamese cuisine. Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: There are 33 entries for expensive restaurants in the centre. Would you like to hear some options? Sentence2: As far as thai food goes, I happen to have one place. Good thing is they are very highly recommended. It is called Bangkok City. Would you like a reservation? Sentence3: Hello, I am looking for a restaurant. The restaurant should be in the centre and should serve modern eclectic food. Sentence4: Cambridge Contemporary Art is very nice. It's in the centre part of town, like the restaurant, and it's free to get in. Can I help you with anything else? Sentence5: No, that is all. Goodbye. Sentence6: Fantastic, can you also find me a museum attraction? Sentence7: Any type would be fine I just need to know the area and entrance fee of one you would recommend. Sentence8: Can you try booking at 15:45? Sentence9: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 1NY7QJKY . Sentence10: Are any of them modern eclectic food? Sentence11: Yes, I'd like to book for 2 people at 16:45 on tuesday. Sentence12: Okay. Have a lovely day then. Sentence13: Dang...How about some Thai food instead Sentence14: There are several wonderful museums in town. Is there a specific area you prefer? Sentence15: Are there any other expensive restaurants in that area that may be nice to visit? Sentence16: There are no restaurants in that are would you like to try a different area? Sentence17: No, there doesn't seem to be any modern eclectic places at all. Would you like a different type of cuisine? Sentence18: I'm sorry, but they seem to be all booked up at that time. Would you like to try a different day or time? Question: Who has spoken the sentence 9? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: You're welcome! If there's anything else we can help with, don't hesitate to ask. Sentence2: Which hotels in Cambridge offer free wifi for guests? Sentence3: Yes can you book that for 4 people at 14:15 on saturday? Sentence4: Ok I would like to book a room. Sentence5: How about Lovell Lodge at 365 Milton Road? Sentence6: Okay great. How about a Chinese restaurant in the same price range? Sentence7: Yes I am interested in the north and a moderate price range. Sentence8: Booking was successful. The table will be reserved for 15 minutes. Reference number is : Q14MS7P4 . Is there anything else? Sentence9: Yes, thursday through sunday and 6 guests. Sentence10: Yes, they do offer that. Sentence11: There are several. Is there an area of town you are interested in? Sentence12: The Yippee Noodle Bar is available, would that be satisfactory for you? Sentence13: can you please tell me when and how many will join you ? Sentence14: I'm not sure at this point. For now, I just need the address. Sentence15: I was able to book the room your reference number is U4XH256U . Is there anything else I can help with today? Sentence16: do they have free wifi? Sentence17: that is it for today. thanks for helping Sentence18: In order to make the reservations, can you tell me for what day, how many guests and how many nights please? Question: Who has spoken the sentence 1? (A) User (B) System

SOLUTION:
Answer: (B) System