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: Have a great day! Sentence2: Let's go with City Centre North B and B. I need to book for 6 people, 2 nights, and starting on Saturday, please. Sentence3: I have listings for two,city centre north b and b and worth house. Sentence4: That sounds great. Can you book that for 6 people for me? Sentence5: TR3602 departs at 15:59 Monday and arrives at London Liverpool street by 17:27. Does this suit your needs? Sentence6: thank you that will be all Sentence7: I'm looking for a train leaving after 15:30 from cambridge. Sentence8: I'm also looking for a recommendation on a hotel with free parking in the north. Sentence9: Sure! I have 6 people booked for monday with reference number 3EBQSQSC and a total of 99.6 GBP. Can I help you with anything else? Sentence10: Do you have a price range? Sentence11: Yes. Your reservation was successful. The booking number is 4H91C8I3 . Sentence12: london liverpool street and should leave on monday Sentence13: Yes, I'd like to keep it cheap, please. I do need free wifi, though. Sentence14: There are over 623 trains leaving then. Where will you be going to? Question: Who has spoken the sentence 2? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: The phone number is 01223420060 and the post code is cb46az. Sentence2: Ok. I booked four tickets for you. Your reference number is FRSZ5A8R . Can I help you with something else? Sentence3: Yes. Book for 4 people. Sentence4: I would like the phone number and postcode for it please. Sentence5: What information are you looking for? Sentence6: Sounds great, before i let you go, I just want to make sure we have covered everything that you need. Sentence7: yes you did Sentence8: TR6806 will leave at 10:01 and arrive at 11:01. The trip will take 60 minutes and it will cost 17.90 pounds. Would you like to book? Sentence9: Thank you! That's all I needed, thanks so much. Sentence10: enjoy your stay in Cambridge! Sentence11: I'm going from cambridge to broxbourne any time after 09:15. Sentence12: I show 404 rail departures on Thursday, can I get something specific for you? Sentence13: I want a train leaving on thursday. Sentence14: Im also looking for a place by the name of milton county park. Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: I would like to dine at 13:30 and I also need the reference number. Sentence2: I also am looking for a place to stay, it will need to be on the east side and have free parking, I don't need internet. Sentence3: Thank you for all your help. That sounds perfect. Sentence4: You are quite welcome. Please enjoy your stay in Cambridge! Sentence5: Sure on the east side with free parking how about allenbell, autumn house, carolina bed and breakfast, or leverton house all guesthouses. Sentence6: Restaurant Alimentum is moderately priced. They are located at 152-154 Hills Road. Would you like me to make a reservation for you? Sentence7: Sure, i want 3 nights starting Wednesday please. Sentence8: You reservation is made for 13:30 and your reference number is X1UVXL1X . Can I help you with anything else? Sentence9: restaurant alimentum sounds interesting. Could you give me more information about this location? Sentence10: Yes, I would like a table for 2 on Wednesday. Sentence11: Alright, your room has been booked at the Autumn House for 3 nights starting on Wednesday. Your reference number is RDXXH6Q8 . Sentence12: Let's choose autumn house. Do you have a preference for a time of day and for how long? Sentence13: Unfortunately there are no Hungarian restaurants in the area. Pizza hut cherry hinton serves italian and restaurant alimentum serves modern european if those interest you. Sentence14: What time would you like the reservation to be for? Sentence15: Any of those could work. You decide. Sentence16: I found Pizza hut cherry hinton and Restaurant Alimentum for you. Sentence17: Can you find a restaurant for me that is southern and is in the mid price range? Sentence18: Does either one serve Hungarian food? I'd like Hungarian food. Question: Who has spoken the sentence 12? (A) User (B) System

SOLUTION:
Answer: (A) User