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: Great! I have booked you a taxi, which will pick you up from the hotel. It will be a yellow Tesla and the contact number is 07140486418. Anything else today? Sentence2: no thank you that is all Sentence3: Could you also book it for me? 3 people, 14:30 on Sunday. Sentence4: Where would you like the taxi to pick you up? Sentence5: Are you sure that you don't want to get to the restaurant for your booked time? Sentence6: I am looking for a place to dine in the centre of town Sentence7: It doesn't matter. We want to eat indian food. Sentence8: Yes,that is it for today. Thanks again. Sentence9: You're welcome, let me know if I can assist with anything else. Sentence10: We have several options. What price range would suit your needs? Sentence11: Sorry, I do need to find a guesthouse as well. Something moderately priced, perhaps 3 stars? Sentence12: May I also have the telephone number for the alpha-milton, please? Sentence13: it should pick me at the restaurant at the booked time Sentence14: the alpha-milton is located in the north. their address is 63 milton road and the postcode is cb41xa. Sentence15: The alpha-milton guest house will fit your needs. Would you like me to be book a room there? Sentence16: Sure, the number for Alpha-Milton Guest House is 01223311625. Can I help with anything else? Sentence17: I have your table booked for Sunday afternoon. They will hold the table for 15 minutes. Your reference number is 28O595TK . Can I help you with anything else? Sentence18: Yes, the address is 106 Regent Street in the City Centre. Their phone number is 01223302330. Can I help with something else? Sentence19: I do need the taxi to get to Curry Garden by the booked time of 14:30. I'm a little scatter brained today. Thank you for clarifying. Sentence20: The prompt before this call came through said that you needed two things, do you need anything regarding a hotel, transport or attractions? Sentence21: Thank you for using our services. Have we met all of your needs today? Sentence22: i also want a taxi to help commute between the two places Sentence23: Well I have the Curry Garden in the expensive price range. Sentence24: No thank you, I just need the address, phone number and area. Sentence25: Please provide me with the address and telephone number. Sentence26: nope, that's all thanks so much! Question: Who has spoken the sentence 16? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Is Aylesbray Lodge a guesthouse? If not, is there a guesthouse that fits? Sentence2: I can help you with that. Do you have a price range? Sentence3: I guess we can go with the moderately priced one. Sentence4: I don't have a preference. I'm just looking for a 4 star hotel that has free wifi. Sentence5: Booking was successful.Your Reference number is : 76HG81V6 . Anything else I can do for you? Sentence6: I need rooms for 8 peoples staying for two nights starting Wednesday. Sentence7: Aylesbray Lodge guest house is moderately priced and has free wifi. Would you like me to make a reservation for you? Sentence8: I'm looking for a hotel in the south part of town. Sentence9: Yes, it is a guesthouse. When would the stay begin and for how long? Sentence10: i have 2 locations that match your requirements, one is cheap, one is moderate. which would you prefer? Question: Who has spoken the sentence 8? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: I have 5 different ones all around town. Did you prefer to stay in a certain area? Sentence2: No, that's all. Thanks. Sentence3: The express by Holiday Inn Cambridge meets your needs, would you like to book it? Sentence4: I'm not ready to book. Can you just tell me what the address is? Oh, and how many stars is it? Sentence5: Sure. It's a two star hotel and the address is 15-17 Norman Way, Coldhams Business Park. Anything else? Sentence6: Yes, on the east side please. Sentence7: I need a place to stay that doesn't have to have internet and is in the expensive price range please. Sentence8: Yes, it does. Sentence9: Does it have free parking? Sentence10: You're welcome! Please contact us if you would like to make a reservation in the future. Question: Who has spoken the sentence 6? (A) User (B) System

SOLUTION:
Answer: (A) User