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: Thank you goodbye. Sentence2: the cow pizza kitchen and bar is a moderately priced gastropub in the centre of town. It's located on Corn Exchange Street, and the phone number is 01223 308871. Sentence3: Can I have the address and phone number of a gastropub in the centre of town? Sentence4: There are three gastropub restaurants listed. One is in the east part of town and the rest are in the centre. Sentence5: I would like the address and phone number of the one in the east part of town. Sentence6: A moderate priced irish food restaurant. Sentence7: thank you and good bye Sentence8: there are no irish restaurants. Would you like to choose another type of food? Sentence9: I'm sorry, it appears there are no results for the east part of town. Our system is having difficulty of some sort. Sentence10: Yes, could you please check whether there is a gastropub? Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: I need to book a taxi to take me to Riverside Brasserie at 11:15. Sentence2: I'm going to riverside brasserie. Sentence3: No, sorry I'm actually departing from saint johns chop house. Sentence4: I'm leaving from the Marriott Hotel in downtown Cambridge next to the theatre. Sentence5: All right, sir, you'll be picked up in a blue BMW. The contact number is 07348606520. Sentence6: Yes, but I want to leave after 11:15. When you book it can you get me the car type and contact number please? Sentence7: Is that the huntingdon marriott hotel? Sentence8: Sure thing, where are you going? Sentence9: welcome.enjoy the ride Sentence10: Ok, just to confirm, you'd like a taxi from saint johns chop house to riverside brasserie at 11:15? Sentence11: Where will you leave from? Sentence12: Thank you, that's all I need. Good bye. Question: Who has spoken the sentence 10? (A) User (B) System

SOLUTION:
Answer: (A) User