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: Let's go with the cheap one. I'll need a table for 7 on Sunday at 12:15 please. Sentence2: Can you try on saturday, 7 people, at 12:15 Sentence3: you're in luck I have two options for you. One is in the cheaper price range, the other is listed as moderately priced. Do you have a preference? Sentence4: Unfortunately the booking was not successful. Sentence5: Yes, you're booked for Saturday with reference number V54FG5X2 . The table will be reserved for 15 minutes. May I help with anything else? Sentence6: Thank you, goodbye! Sentence7: No, that's all I need. Thanks for your help! Sentence8: Yes I would like to find Spanish food in the center of town. Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Can you give me the address for the Parkside Police Station? Sentence2: No, that's all. Good bye. Sentence3: The address you're seeking is Parkside, Cambridge. Sentence4: Telephone : 01223358966 Postcode : CB11JG. Is there anything else? Sentence5: You're welcome. Thank you for contacting TownInfo centre today. Goodbye Sentence6: Thank you, what is the phone number and postcode? Question: Who has spoken the sentence 2? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Sounds great. Can you please book that for me for Tuesday for 2 people, 2 nights please? Sentence2: There are 5 trains available what time would you like to leave by? Sentence3: Okay, TR0927 leaves at 13:29 and arrives at 14:07. Shall I book you a seat? Sentence4: No, I'll look it up later and do it myself. But could you tell me if there are any 4 star places to stay in the city centre? Sentence5: I was able to successfully book you, your reference number is D53TP7EU ., can I assist with anything else? Sentence6: What is your destination? And what day are you hoping to travel? Sentence7: I'd like to leave before 14:00 Sentence8: A train depart from Cambridge and arrive by 19:00 Sentence9: Nope, that's all I need today. Thanks! Sentence10: They both have free parking and wifi. How about the alexander bed and breakfast? It's on the cheaper side, 4 stars, and really quite lovely. Sentence11: Which ever one has free parking and wifi. Sentence12: You're welcome. Have a great day! Sentence13: There are two, a cheap guest house, and an expensive hotel. Any preference? Sentence14: I need to leave on Thursday and am heading to Bishops Stortford. Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION:
Answer: (B) System