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: I'd like to find an expensive restaurant in the north part of town. Sentence2: The restaurant should serve asian oriental food. Sentence3: You are welcome. Sentence4: Yes, I would like to be booked for a table for 8 on 19:45 on a Saturday, and could I also get the reference number? Sentence5: Your reservation has been made and the reference number is 3P2ALRY0 . Sentence6: I have one restaurant called saigon city on 169 high street chesterton chesterton. Would you like me to book for you? Sentence7: There are many restaurants in the North that match your description, what type of cuisine are you interested in? Sentence8: Thank you for your help. Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: My destination is cambridge. Sentence2: What day will you be traveling? Sentence3: Hey. I'm looking for a train from stansted airport. Sentence4: What is your destination ? Sentence5: I plan to go on tuesday. Sentence6: How many tickets would you like? Sentence7: There are trains departing every hour. TR5077 would get in in at 8:52, does that work for you? Sentence8: That sounds perfect. Can I get the reference number from the booking? Sentence9: I would like 4 tickets. Sentence10: Booking was successful, the total fee is 40.4 GBP payable at the station. Reference number is : WWW231NO . Is there anything else you need? Sentence11: There are several. Do you have a time you need to travel specifically? Sentence12: The train should arrive by 10:00 if at all possible. Question: Who has spoken the sentence 5? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: There are 8 trains, TR2987 leaves at 9:35 if you'd like that. Sentence2: The Man on the Moon concert hall is my favorite. Their postcode is cb12lf. Can I help you with anything else today? Sentence3: No thanks. I will go ahead and book later. I think that's all the information I need for today. Sentence4: 4.40 pounds. would you like me to book it for you? Sentence5: I am in the centre of town and I need somewhere to go. Sentence6: I'm going Monday and need to leave after 08:00. Sentence7: Anything is fine. Send me to your favorite place in the city, just be sure to give me the postcode. Sentence8: That would be fine. What is the price? Sentence9: All right, then. Thank you for calling. Have a nice day. Sentence10: What day would you like to travel, and at what time? Sentence11: I'm looking for a train from Ely to Cambridge. Sentence12: There are 44 attractions near you, can you narrow down what you would like to see? A museum perhaps? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION:
Answer: (A) User