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'm sorry, but there are no restaurants that meet your criteria. Would you like to broaden your search? Sentence2: There are 5 places that serve European. Did you prefer modern European, or just European food in general? Sentence3: Yes, please. I will need 8 tickets, and please give me the reference number once you book. Sentence4: What about a restaurant that serves european food? I'd like the phone no. and postcode to that, please. Sentence5: Sounds lovely. Thank you so much for all of your help! Sentence6: How about the Galleria? Their phone number is 01223362054 and the address is 33 Bridge Street, the postcode is cb21uw Sentence7: What time do you want to depart? Sentence8: I also need a Thai restaurant in the moderate price range. Sentence9: There is only one train that would meet your criteria closely and it leaves at 11:50 and arrives in Ely at 12:07. may I book that for you? Sentence10: I have successfully booked you 8 tickets. Your reference number is 0YY5WZQ6 . Is there anything else you need? Sentence11: First, may I confirm that your departure site is Cambridge? Sentence12: Just european food in general, please. Sentence13: hi I want a train to Ely arrived by 13:45, can you help me do that? Sentence14: Thank you for using this system. Sentence15: That is correct. Sentence16: Any time is fine as long as it's on Saturday. Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: it is located at Thompsons Lane Fen Ditton and you can reach them at 01223 362525 . Sentence2: La mimosa serves mediterranean food in the centre of town. Would you like their information? Sentence3: You're welcome, goodbye Sentence4: Yes, I'd like the address and phone number please. Sentence5: looking for mediterranean food Sentence6: Thank you! Goodbye. Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: I have it booked for you. The reference number is LK03FYO8 . Sentence2: Thank you! I also need info on a train. It should leave on friday after 12:45. Sentence3: Yes, and please let me know the expense and travel time. Sentence4: curry prince is one that fits your needs Sentence5: I'm going to peterborough. Sentence6: I have a train leaving at 13:06 and arrives in peterborough at 13:56. Would you like to book that train? Sentence7: Yes I am looking for a restaurant in east cambidge that serves indian food Sentence8: Okay, I can help you find a train. What is your destination? Sentence9: Actually, I don't need tickets just yet. I'm all set here. Thanks for all your help - goodbye! Sentence10: Goodbye, I hope you enjoy your trip! Sentence11: It is 16.50 pounds and the travel time is 50 minutes. How many will the booking be for? Sentence12: I will want it for five, on Thrusday, 15:15 Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION:
Answer: (B) System