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: Booking was successful for the bridge guest house. Your Reference number is : LBEOV690 . Sentence2: Yes please. Which is the cheapest? Sentence3: Thank you. Have a nice day. Sentence4: No. I would like to make a reservation for Wednesday for 3 nights and 8 people. I will also require a reference number. Sentence5: I was unable to book your stay at any of the three hotels. Would you like to change the length of your stay or change the day? Sentence6: There are 2 hotels with a 3 star rating and free parking. Would you like to stay in the centre or south? Sentence7: Sorry, I was mistaken. There are 3 guesthouses matching your request. One each in the south, north, and west. Would you like to book one? Sentence8: Thank you. Have a nice day. Sentence9: Can you please try a 2 day stay. Sentence10: I can only tell you they are all in the moderate price range. Do you have any other preferences? Sentence11: I am looking for a hotel with a 3 star rating and free parking Sentence12: Either is fine. I'd like a guesthouse. Question: Who has spoken the sentence 5? (A) User (B) System

SOLUTION: Answer: (B) System

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: I do not have an arrival time. Sentence2: It should leave from Cambridge and go to Leicester please. Sentence3: Certainly! What are your departure and destination locations? Sentence4: Your booking was successful, the total fee is 226.8 GBP payable at the station. Your reference number is: 17I15NSK . Is there anything else I can help you with today? Sentence5: Hi, I am looking for a train that leaves on Tuesday after 18:15. Sentence6: Thanks for that information. Is there a time you would like to arrive by? Sentence7: carolina bed and breakfast has free wifi and parking if you want to book there. Sentence8: Yes I also need a guesthouse to stay in. It should have 4 stars, free wifi, in the east location. Sentence9: We have 6 different guesthouses that fit your criteria. Do you have a specific price range in mind? Sentence10: No it doesn't matter. Sentence11: The TR0776 leaves Cambridge at 18:21 and gets into Leicester at 20:06. Do you want me to book it for you? Sentence12: Yes. I would like to book it for 6 people please. Question: Who has spoken the sentence 1? (A) User (B) System

SOLUTION:
Answer: (B) System