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: How about the Alexander bed and breakfast in the centre? It is a cheap 4 star guesthouse with free internet and wifi. Sentence2: That sounds like it might work. Could you check availability for two people this weekend? Sentence3: Does this place include free parking? Sentence4: I am unsure at this time. Sentence5: I am glad to help. Have a nice day. Bye. Sentence6: I live in the centre of town and want to see if I can find a reasonable room for my parents to stay while they are visiting. Sentence7: Okay, would you like some more information about that hotel? Sentence8: You have been very helpful. I have everything I need, thanks. Bye Sentence9: The address is 56 saint barnabas road. Sentence10: What day are they arriving, and how many nights are they staying? Sentence11: The alexander bed and breakfast is a cheap, 4 star guesthouse in the centre area, It has wifi and parking. Does this fit your needs? Sentence12: Can you tell me what the address is? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

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: Great. Thanks. Can you look up a restaurant for me? Sentence2: There are several trains that day, do you know what time you want to leave or arrive? Sentence3: Yeah, that sounds great. Sentence4: There is a train departing Cambridge at 15:21 and arriving in Cambridge at 17:06. Can I book that for you? Sentence5: Okay, I've booked you a seat on the 15:21 train on Tuesday. The total fee is 37.79 GBP payable at the station . Reference number is : NHFGUN35 . Sentence6: I want to go to Leicester and want to leave on Tuesday. Sentence7: What about the phone number? Sentence8: I need to get there by 17:15 Sentence9: Yes and their phone number is 01223363270. Sentence10: Thanks so much for your help. Sentence11: Hello, I'd like some information on a train departing from cambridge. Sentence12: 1. please also get me z restaurant called city stop restaurant.and give me phone number and postcode Sentence13: how many tickets would you like? Sentence14: Certainly. What is your destination and what day will you be leaving? Sentence15: Can you book it for me and get a reference number ? Sentence16: Sure, the address is Cambridge City Football Club Milton Road Chesterton cb41uy. And just to confirm, you wanted to book 1 ticket for that train? Question: Who has spoken the sentence 15? (A) User (B) System

SOLUTION:
Answer: (B) System