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: No thank you. That is great. Sentence2: Have a good day! Sentence3: There are three british restaurants in the west. What price range are you considering? Sentence4: Thanks! Sentence5: I'm looking for meals under 30$ a person. I need to book for 3 at 16:15 on Wednesday. Sentence6: The restaurant Saint Johns Chop House is the only restaurant to your specifications with a moderate pricing. Would you like me to make a reservation? Sentence7: Your booking is successful and your reference number is CZT3LA0M . Is there anything else I can help you with? Sentence8: Yes please and I will need a reference number. Sentence9: I am looking for a German restaurant in the west. Sentence10: Enjoy your time! Sentence11: There are no German restaurants available in the west. Would you like to try a different area or different food type? Sentence12: How about one that serves british food instead? Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Okay, great. Have a safe trip. Goodbye. Sentence2: Yes please. I need it booked for 1 person for 2 nights starting tuesday. Can i get a reference number? Sentence3: I have found the allenbell guesthouse. It meets all of your criteria, is in the cheap price range, and provides internet and parking. Would you like me to book it? Sentence4: Thank you, that is it for today. Goodbye. Sentence5: The reference number for your booking is KEBFTR7I . Can I do anything else for you? Sentence6: I need a place with rated 4 stars in the east. Can you help me find one that like a guesthouse? Question: Who has spoken the sentence 1? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: I need reservations for the same group of people at 17:00 on the same day. Sentence2: No problem. I've got your taxi booked. Anything else? Sentence3: Booking was successful! Your reference number is 6ZPBNFD5 . Sentence4: The booking was successful for 2 nights at the Acorn Guest House for one person. Your Reference number is L55JCSVU . Do you need anything else? Sentence5: I hope you have a very pleasant stay in our town! Sentence6: I meant to say I need to commute between the hotel and the restaurant. Sentence7: I think that would be great. May I please book that guest house for 2 nights starting from Friday for 1 person? Sentence8: Yes I would like it to be moderately priced. Thank you. Sentence9: Can I have the contact number and car type? Sentence10: Can you also look up the sitar tandoori restaurant? Sentence11: Booking completed! Booked car type : grey bmw Contact number : 07853122848 Can I help you with anythign else? Sentence12: Great. You are so helpful. One more thing, I need a taxi to arrive at the restaurant by the booking time Sentence13: Great! Thank you so much! Sentence14: What do you have in the way of guesthouses in the north? Sentence15: Well I can recommend the Acorn Guest House that is also rated 4 stars. Sentence16: There are 9 options that would suit those criteria, do you have any other things you need for your stay or would you like a recommendation? Sentence17: I have found 11 different guesthouses in the north. Were there any certain requirements you have in searching for a particular guesthouse? Sentence18: i have their info, what would you like to know? Sentence19: I can help with that. Where would you be departing from? Sentence20: Please provide a recommendation. Question: Who has spoken the sentence 15? (A) User (B) System

SOLUTION:
Answer: (B) System