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: Have a good day! Sentence2: No thank you, that is all. Sentence3: I am looking for a train to London Kings Cross that departs after 08:15. Sentence4: The TR2000 leaves cambridge going to london kings cross on friday at 09:00. It arrives in london kings cross at 09:51. How does that sound? Sentence5: Yes. What do you have available? Sentence6: Are you departing from cambridge station? Sentence7: I'll be travelling on a Wednesday. Sentence8: That's great. Please book me two tickets. Sentence9: The booking was successful and the fee is 47.2 GBP payable at the station. Reference number is E2N0JHSY . May I assist you with anything else today. Sentence10: What day would you like to travel? Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Yes, all of the listed entrance fees are 5 pounds. The Club Salsa is nice. Sentence2: Have fun! Goodbye! Sentence3: Club Salsa's address is 1 Station road and their phone number is 07782218745. Sentence4: No thanks. That's it. Sentence5: Location doesn't really matter. Is there an entrance fee? Sentence6: Yes, would you like to find a nightclub in the centre or south part of town? Most of them are in the centre. Sentence7: Club Salsa sounds right up my alley. Can I get the address and phone number please? Sentence8: Can you find information about nightclubs? Sentence9: You're welcome. Can I help you with anything else? Sentence10: Okay, great! Thanks for your help! Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: What time would you like? Sentence2: Unfortunately, after trying to book again I was still unsuccessful. Would you like to try another day or time? Sentence3: Could you please try 18:00 on the same day? Sentence4: There are 202 trains to cambridge on Saturday. Can you tell me your departure station and the time you'd like to travel? Sentence5: I'd like the table for 19:00, please. Sentence6: Great, all I need is the reference number please. Sentence7: I would like to make a reservation for 6 people on Saturday. Sentence8: I would like to leave from stansted airport after 15:00 Sentence9: I would maybe be interested in booking this train. What is the train id, price per ticket and arrival time? Sentence10: can you book me a train to Cambridge that leaves on Saturday. Sentence11: I unfortunately do not have this info for you. The booking is now saying unsuccessful. Sentence12: That is all. Thank you. Sentence13: Okay. I have made a reservation for Saturday at 19:00 for six people. Sentence14: Can you try again please? Sentence15: Have a great day. Sentence16: Okay thanks, I also need info for the cow pizza kitchen and bar. Sentence17: Your booking for Saturday at 18:00 was made. Your reference number is L7W1NACD . May I help you with anything else today? Sentence18: The train is TR1493 with the price 8.08 pounds. The arrival time is 15:52. Sentence19: I found nine trains leaving stansted airport for cambridge, leaving every hour starting at 15:24. Would you like to book that first train? Sentence20: Ok. That's a moderately-priced gastropub in the centre. Would you like the address or phone number? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION:
Answer: (A) User