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 would like it to serve food from the americas. Sentence2: 'Hotel du vin and bistro' and 'galleria' Sentence3: Certainly, can I book your table at hotel du vin and bistro or would you prefer a table at galleria? Sentence4: i have booked you a taxi, red tesla, phone number is 718 850 4433. Sentence5: Thank you have a great day. Sentence6: Do they offer free parking? And can I get the phone number for them please. Sentence7: There are 2. Did you want me to book one of them? Sentence8: Your table has been booked and is reserved for 15 minutes, reference number is M32YYIJN . Can I help you with anything else? Sentence9: Yes, there is free parking at Hamilton Lodge. The phone number is 01223365664. Sentence10: How about european food? Sentence11: Is it possible to arrange a taxi to take me from the hotel to the restaurant by 16:00? Sentence12: I have the information pulled up. What would you like to know about it? Sentence13: I need to book a table for 3 people at 16:00 on friday at galleria Sentence14: I would like to book a table for three on Friday, at 16:00. Sentence15: I'm also looking for a hotel called hamilton lodge. Sentence16: There are many moderately priced restaurants that meet your criteria, what type of food are you looking for? Sentence17: What are the names? Sentence18: Thank you that's all that I needed Sentence19: I am looking for a restaurant in the moderate price range in the centre of town. Sentence20: Unfortunately I could not find any restaurants serving food from the Americas in the moderate price range. Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Thank you goodbye. Sentence2: the cow pizza kitchen and bar is a moderately priced gastropub in the centre of town. It's located on Corn Exchange Street, and the phone number is 01223 308871. Sentence3: Can I have the address and phone number of a gastropub in the centre of town? Sentence4: There are three gastropub restaurants listed. One is in the east part of town and the rest are in the centre. Sentence5: I would like the address and phone number of the one in the east part of town. Sentence6: A moderate priced irish food restaurant. Sentence7: thank you and good bye Sentence8: there are no irish restaurants. Would you like to choose another type of food? Sentence9: I'm sorry, it appears there are no results for the east part of town. Our system is having difficulty of some sort. Sentence10: Yes, could you please check whether there is a gastropub? Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: The booking was successful. Your table will be reserved for 15 minutes. Your reference number is : 3MC54ZYM . Is there anything else I can do for you? Sentence2: There's two places that match your criteria. One is indian food and the other is italian. Would you like the address of either? Sentence3: Actually, let me get more information first. What is the travel time and price? Sentence4: I am traveling to Cambridge on Saturday. Sentence5: Did you want me to reserve the train for you? Sentence6: Can you book it for me and get a reference number ? Sentence7: Yes I can. Please tell me where you're departing from and what day and time and I'll get you some options. Sentence8: Ok! The restaurant is called Da Vinci Pizzeria and the address is 20 Milton Road Chesterton with postcode CB41JY. Would you like to reserve a table? Sentence9: I'll be happy to assist with that, how many tickets would you like me to book? Sentence10: Yes, I'm also looking for a train that will depart from Peterborough. Can you help me with that? Sentence11: I would love to know the address of the Italian place please, that sounds perfect! Sentence12: Leaving peterborough and must arrive at least by 12:15, I'll need to book a table then too Sentence13: TR8494 leaves peterborough saturday at 11:19 and arrives in Cambridge at 12:09. Would you like me to book passage for you? Sentence14: No that is everything, thanks for your help. Sentence15: Thank you. That is all that I need. Sentence16: Where are you heading to from Peterborough? Sentence17: I am in the north part of town, can you tell me what cheap restaurants are around? Sentence18: Yes I would, I need it for Saturday for 5 people at 18:00 please. Sentence19: Travel time is 50 minutes, and the price is 13.20 pounds. Sentence20: You are welcome, enjoy your stay. Question: Who has spoken the sentence 16? (A) User (B) System

SOLUTION:
Answer: (A) User