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: I am looking for Mediterranean food in the center of the city. Sentence2: I show 3 available. 2 are in the expensive range and 1 is cheap. May I book a table for you? Sentence3: Thanks for calling. You have a great day! Sentence4: I have booked you at the Shiraz Restaurant for 7 people Saturday at 15:45. Your table will be reserved for 15 minutes. Sentence5: I'd like the expensive range and I'd like to book a table for 7 people on Saturday at 15:45. Sentence6: Great. Thanks so much! Sentence7: Thank you so much. That is all I need today. Have a great evening. Sentence8: Sure. Your reference number is MSV3UPS2 . You will likely need it. Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: I'm just looking for something fun to do in the centre of town. Do you have any recommendations? Sentence2: I am checking on the train schedule from Peterborough to Cambridge. Sentence3: I will book it myself. Sentence4: What day do you want to depart? Sentence5: i want to depart on thursday. Sentence6: Can I get the phone number please? Sentence7: I also need an attraction. Sentence8: thank you and enjoy your stay. Sentence9: No thank you. That is all for today. Goodbye Sentence10: OK - is there anything else I can help you with today? Sentence11: TR418 leaves at 10:19. Whould you like me to book it? Sentence12: Sure many trains use that route. It would be helpful if you could narrow down a specific travel time. Sentence13: I want to leave after 10:00. Sentence14: Sure, their number is 08712240240. Is there anything else I can help with? Sentence15: Ok, I can help you with that. What type of attraction are you looking for? Sentence16: I'd recommend Vue Cinema. Would you like more information? Question: Who has spoken the sentence 13? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Yes, there are multiple places to stay in Cambridge. May I help narrow down these choices for you? Sentence2: I need a place to stay with free wifi. Sentence3: Booking was successful. The table will be reserved for 15 minutes. Reference number is : UF08L0ON . Anything else that I may help you with. Sentence4: I'd suggest bridge guest house on 151 hills road. Would you like a reservation? Sentence5: Can you make a reservation for 8 people for 5 nights starting from Wednesday? Sentence6: Actually, I'm also looking for an expensive place to dine in the centre. Sentence7: I don't care about what part of town it is in, but I would like a 3 star guesthouse. Sentence8: Thank you for using our services. Sentence9: The Bridge Guest House is in the moderate price range, and we have attractions in all areas of Cambridge so I'm sure you will find something to your liking. Sentence10: No, you've been very helpful. That's all I needed. Thank you very much. Sentence11: Yeah, I'd like a taxi to take me from my hotel to the restaurant in time for my reservation. Please tell me the car type and contact number. Sentence12: yes, that's everything for me. Thanks for helping, goodbye Sentence13: The Kymmoy is expensive and in the centre of town Sentence14: Taxi is booked. It's a black volkswagen, phone number 07609143114. Is that all for now? Sentence15: How expensive is it ? And is there any nearby attractions ? Sentence16: I was able to book the room for you your reference number is 5YY25K1O . Is there anything else you need me to do for you? Sentence17: I need to book a table for the same group of people at 20:00 the same day. I need the reference number as well. Sentence18: You are welcome. Question: Who has spoken the sentence 13? (A) User (B) System

SOLUTION:
Answer: (B) System