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: Can you check the availability at the University Arms Hotel for five people? Sentence2: You are welcome. Sentence3: Sure thing! Your reference number is LW8PBD97 . Sentence4: Thursday please. Sentence5: Thank you so much, that is all that I need for now. Have a wonderful day. Sentence6: What day would you like to book? Sentence7: Actually for 5 nights and there will be 5 of us staying Sentence8: For just one day? Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Sorry. TR2052 departs from leicester and the destination is cambridge. It leaves at 15:09 on Wednesday. Would you like me to book it for you? Sentence2: Yes, I only need 1 ticket for myself. Sentence3: There are 13. I could recommend Trinity College on Trinity Street. Or would you like information about one of the others? Sentence4: I would like to arrive by 17:00 in leicester. Sentence5: I would like help finding a college to visit in the centre of town. Sentence6: Of course. The address is Trinity Street, postcode is CB21TQ, and the entrance fee is one pound. Can I help you with anything else? Sentence7: Yes and please give me the reference number. Sentence8: OK, I've booked one ticket for you on TR0451 from cambridge to leicester, arriving at 16:06. Ref# 8OZNJHMO . Can I help you with anything else today? Sentence9: That sounds good. Could you give me the entrance fee, phone number, and postcode? Sentence10: Certainly. Just to verify, are you traveling alone? You would only like one ticket? Sentence11: TR3702 LEAVES AT 05:00 CAN I BOOK THAT ONE FOR YOU? Sentence12: How early do you wish to arrive? There are 11 trains that will get you there before 17:00. Sentence13: Thank you for using our service. Have a good night. Goodbye. Sentence14: Does this train go to Leicester from Cambridge? Sentence15: Yes I'm also looking for a train that leaves wednesday and arrives by 17:00. Sentence16: I think that is all I need, thank you. Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: yes, it is in the centre. Sentence2: I recommend the funky fun house it's located at 8 mercers row, mercers row industrial estate. The entrance fee is not in my database. Sentence3: not now. is it in the centre? Sentence4: Any area is fine, could you give me the address and entrance fee for a place you recommend? Sentence5: Thank you for the info that was all I needed. Sentence6: The postcode is cb21nt and the address is 59 Hills Road City Centre. Sentence7: Thank you for using our system today! Sentence8: There are 5 entertainment attractions in town. Do you need to travel to a specific area of Cambridge? Sentence9: I have one listing for ali baba. Would you like to make a booking? Sentence10: Hello I would like some sort of entertainment in town. Sentence11: Can I have the postcode and address please? Sentence12: Thank you for that information. I'd also like to dine at a moderately priced restaurant that serves Lebanese food please. Question: Who has spoken the sentence 2? (A) User (B) System

SOLUTION:
Answer: (A) User