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: What day are you travelling? Sentence2: You are very welcome. Enjoy your day too. Bye. Sentence3: I'd like to book 3 tickets on the train arriving at 19:08, please. And would it be possible to have a reference number for the booking? Sentence4: I will need to leave from Cambridge if that's ok Sentence5: I have a train that arrives earlier at 18:08 and one that arrives just before your specified time at 19:08. Sentence6: Sure. Where will you be leaving from? Sentence7: I was wondering if you could help me in finding a train to the airport. Sentence8: OK, you have 3 tickets reserved on TR4447, departing Cambridge at 18:40, arriving Stansted at 19:08. Total fee is 30.29 GBP. Reference #5VRJSMSE . Will that be all today? Sentence9: Yes, it will. Thanks so much. Have a nice day. Sentence10: On Wednesday. I need the train to arrive by 19:15. Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: What is the address? Sentence2: Indian, Italian and British restaurants are available in the west part of town for a moderate price. Would you like more information on any or all of these? Sentence3: No, the west part of town Sentence4: I don't have a preference as long as it's moderately priced and in the west part of town. Sentence5: Meghna is an Indian restaurant, it is in the moderate price range, and it is in the west part of town. The address is 205 Victoria Road Chesterton. Sentence6: May I suggest curry prince, a moderately priced indian restaurant in the east? Sentence7: I would like a moderately priced restaurant in the east part of town Sentence8: Did you want the address for an Indian, Italian, or British restaurant? Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: The Lensfield Hotel is location on 53-57 Lensfield Road, postcode cb21en. Would you like to look at booking a room? Sentence2: Thanks for letting us assist you today! Enjoy your trip! Goodbye. Sentence3: You're all set; your reference number is: 0IKY6DF0 . I hope you enjoy your stay. Sentence4: Yes please I will be there three nights. Send me a reference number please. Sentence5: Thank you. That is all that I need. Sentence6: I need their entrance fee and phone number. Sentence7: Your taxi reservation on a blue Skoda was successful. The contact number is 07066636790. Sentence8: Should it be in the same area of town as the hotel? Sentence9: I'm looking for a theatre in the centre of town. Sentence10: I'll be there on Tuesday. Sentence11: Sure, I can do that. Can you let me know what days you would like to stay? Sentence12: I do not know the entrance fee but the phone number is 01223300085. Sentence13: I'd like to find the Lensfield Hotel. Sentence14: and for what time please? Sentence15: I will give the theatre a call, thanks. I also need help with a taxi between the hotel and the theater, please. Sentence16: Thank you. I am also looking for places to go in town. Sentence17: adc theatre fits those criteria. Would you like more information on it? Sentence18: I want to leave by 8:15. Question: Who has spoken the sentence 6? (A) User (B) System

SOLUTION:
Answer: (A) User