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: You're welcome. Can I help you with anything else? Sentence2: That is all. Thanks Sentence3: The post code is CB11JG. Sentence4: Thank you, what's the post code? Sentence5: Thank you for your help Sentence6: Cambridge, parkside police telephone number 01223358966. Sentence7: I need to get to the nearest police station, can you assist me? Sentence8: Okay. Have a good day and thanks for using our system. Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Booking was successful. Your reference number is : 1F0GOZ1D . Sentence2: Can you try 4 nights instead? Sentence3: I recommen a and b guest house. Should I book that? Sentence4: We have 6 total guesthouses in the east, any more preferences? Sentence5: Not particularly. Do you have one you would recommend? Sentence6: Yes, I would like free wifi and a 4 star rating. Sentence7: I'm looking for a guesthouse in the east please. Sentence8: funky fun house would be nice for you Sentence9: Great, could I also find someplace near the hotel to go for fun? Sentence10: Unfortunately there are no rooms available for Wednesday in the East. Could I look at a different location or day? Sentence11: please, For 2 people for 5 nights starting on Wednesday Sentence12: I have six places, is there a price range you have in mind? Question: Who has spoken the sentence 6? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Could you reserve a table for 5 at Peking Restaurant. I need it for Wednesday at 11:15. Sentence2: Sure, I have 9 restaurants like that. Is there a certain area you had in mind? Sentence3: I have 2 chinese restaurants in the south. Both are expensive but worth the money! I have the Peking Restaurant and the Good Luck Chinese Food Takeaway. Sentence4: Thank you so much, that is all that I needed! Sentence5: I'd like an expensive restuarant with Chinese food. Sentence6: You are welcome! Sentence7: I was able to successfully book at table for 5 at Peking restaurant for 11:15. Your reference number is WOK3FTDI . Your table will be reserved for 15 minutes. Sentence8: I would like to stay in the south please. Question: Who has spoken the sentence 5? (A) User (B) System

SOLUTION:
Answer: (B) System