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: Okay, the TR8944 leaves at 15:39 and arrives by 17:07. Would you like me to book tickets for you? Sentence2: There are 10 trains leaving fro Liverpool Street on Thursday. Did you have a departure time in mind? Sentence3: Okay I have booked you and your reference number is WLUOQKEV . Sentence4: rosa's bed and breakfast is in the cheap price range Sentence5: I'm looking for a train departing from london liverpool street leaving on thursday. Sentence6: Do you need a taxi? Sentence7: Goodbye, and thanks again. Sentence8: Yes, I don't want to leave for Cambridge until 15:00 at the earliest. Sentence9: Sure thing. Thanks for letting us help you today! Sentence10: Thank you. I also need a hotel in the south. Sentence11: then thanks for inquiring with us. Sentence12: I don't need a taxi, thanks for asking Sentence13: No price range but I do want a 4 start. Sentence14: Yes, for 6 people. Sentence15: What price range are you interested in? Sentence16: That sounds great. I'll need a reservation for 6 people for 4 nights on Thursday. Sentence17: I've gone ahead and booked that for you. Your Reference number is : EUZ34KY9 . Is there anything else I can assist you with today? Sentence18: No, that takes care of everything I need. Thanks! Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Yes please, two people for two nights on sunday. Sentence2: Yes! Can you book for 2 people at 14:15 on this Sunday? Sentence3: Reference number is : E9BM21NJ . Is there anything else I can assist you with? Sentence4: Are you sure there is nothing more I can help with today? Sentence5: Great that will be all we need. Sentence6: Can you help me find a place to eat in the expensive price range in the south part of town? Sentence7: I have one matching result. It is the lensfield hotel. Do you want to reserve a room? Sentence8: I was able to book your party of 2 into The Chop House on Sunday at 14:15 Reference: MUWLBLLW . May I assist with more today? Sentence9: What about the cambridge chop house. The address is: 1 Kings Parade. You you like me to book a table? Sentence10: Do you have a reference number? Sentence11: This time that is everything, thank you for your help. Sentence12: Actually yes I will be needing somewhere to stay too please. A 3 star hotel in the same area and price range as my restaurant. Sentence13: You are welcome enjoy. Sentence14: Ok, I've booked the Lensfield Hotel for you for 2 people and 2 nights starting Sunday Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: i am looking for a place to stay. The hotel should have a star of 0 and should be in the cheap price range. Sentence2: Thank you for your help. Sentence3: Ok. I want a taxi to pick me up from the attraction by 10:45 and take me to the hotel. Please give car type and contact info Sentence4: Maybe Old Schools, it is an architecture attraction. Sentence5: I have booked a taxi service for you. The car will be a yellow honda and the phone number to reach them is 07991691380 Sentence6: I would like to find something fun to do in the East. Sentence7: Just pick an attraction in the same area as my hotel that you personally recommend and tell me its type Sentence8: That would be the El Shaddai. They offer free parking and wifi. They are located at 41 Warkworth Street. Their postcode is cb11eg. You can reach them at 01223327978. Sentence9: The centre will be fine. Can I have the info on that one,please? Sentence10: Glad I could help. Have a great day. Sentence11: What kind of entertainment are you looking for? Sentence12: I actually need to stay in the east and it needs to have free wifi please. Sentence13: Unfortunately, I cant find a listing in the east part of town, the next listing available is in the centre and it does have free wifi. Sentence14: I have one in the north area would you like me to book it for you? Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION:
Answer: (B) System