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: book a table for 6 people at 12:00 on wednesday Sentence2: Are you looking for one in a particular area? Sentence3: I'm looking for parks in Cambridge can you help me? Sentence4: No, area doesn't matter. What park would you recommend? Sentence5: Thank you that is all I need for now. Sentence6: Okay great! I hope you have a wonderful day! Sentence7: Tandoori Palace in the west is a wonderful Indian restaurant. Would you like their phone number or a reservation there, perhaps? Sentence8: I was able to book a table for 6 they will hold the table for you for 15 minutes. The reference number is M4ILDKD4 . Sentence9: The postcode is cb18dw. Sentence10: There are fifteen Italian restaurants in town. Do you want a specific part of town, or maybe a certain price range to narrow down the search? Sentence11: I need help finding a book on italian food Sentence12: No just the postcode please. Sentence13: Thanks. Could you help me find and expensive Indian restaurant perhaps? Sentence14: Cherry Hinton Water Play park in the east is an excellent place to keep cool on hot summer days. Would you like the address? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: I can definitely help you out with that. Is there a certain area of town you'd like to stay in? Sentence2: I have booked your stay at the Alexander Bed and Breakfast for Friday for 3 days for 6 people. Your reference number is DJF36WMD . Is there anything else I can help you with today. Sentence3: The train ID is TR9629, leaving at 18:09 and arriving by 19:54. Can you tell me how many tickets you would like to purchase? Sentence4: I'd like one ticket please. Sentence5: I will need to take a train from Leicester on the same day as my hotel booking. Sentence6: I am looking for a cheap hotel with free parking. Sentence7: All trips from leicester cost 37.8 pounds and take 105 minutes. Is there a specific time you would like to depart or arrive by? Sentence8: Alexander bed and breakfast is a guesthouse in town centre in the cheap price range. It has both free parking and wifi. Would you like to book a room? Sentence9: We will be arriving on Friday and staying 3 nights. Sentence10: I will need to know how many nights and what day you will be starting your stay before we finish the booking. Sentence11: I do not. I just need the train ID and what arrival time it has. Sentence12: Alright I've booked you one ticket, the total will be 37.79 and your reference number is PGY0G1J2 . How else can I help you? Sentence13: Sure, you need a taxi to Alexander Bed and Breakfast from where, and do you have an arrival time request? Sentence14: Can you please schedule a taxi to take me from the station to my hotel? Sentence15: Thank you for your help. Sentence16: I need to leave after 17:45 heading for Cambridge. Go ahead and book the closest time and give me the train ID and arrival time. Sentence17: The train arrives by 19:54 and TR9629 is the train id. Sentence18: Is there anything else I can help you with? Possibly entertainment or places to visit on your trip? Sentence19: I would prefer to be in the centre of town, and I need the hotel to include free parking. Sentence20: Yes, please. That sounds perfect. There will be six of us. Question: Who has spoken the sentence 12? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Does it have four stars? Sentence2: Not yet, but can you tell me what time the train arrives in Ely please? Sentence3: acorn guest house is located in 154 chesterton road should i book it for you? Sentence4: I would like to leave on Tuesday after 18:00. Sentence5: It arrives by 20:07! Anything else love? Sentence6: TR5511 leaves Cambridge for Ely at 20.07. Do you need tickets? Sentence7: I've booked your stay at the Acorn Guest House, and your reference number is IT07BRTC . Sentence8: The trip will last 17 minutes. Is there anything else you would like to know? Sentence9: Do you know what day or time you want to leave? Sentence10: Thank you for using Cambridge TownInfo centre. Please consider us for your future travel needs. Sentence11: I need some lodging accommodations. It needs to have free parking and Internet please! Sentence12: I would like someone to book me a place with free parking and internet. Sentence13: That should do it. Thanks so much for your help! Sentence14: I found 29 hotels matching your request. What price range and area of town would you prefer? Sentence15: Thanks a lot. Can you also help me find a train going to Ely? Sentence16: Yes. Please book it for 2 people for 4 nights starting Friday. Sentence17: Yes it does. Shall I book? Sentence18: What is the total travel time on that time? Question: Who has spoken the sentence 15? (A) User (B) System

SOLUTION:
Answer: (B) System