Teacher: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Solution: Answer: (A) User
Reason: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Now, solve this instance: Sentence1: do you know the lensfield hotel? I need their phone # and how many stars do they currently have? Sentence2: Certainly, where is your place of departure and arrival? Sentence3: I need a train on Tuesday that arrives by 16:45. Sentence4: The lensfield is a 3 star hotel and the phone number is 01223355017. Would you like to make reservations there? Sentence5: No thank you. That's all I need for now. Sentence6: I have train TR1395 that leaves at 13:39 and will arrive in Cambridge by 15:07. Would that work for you? I would be happy to book your ticket. Sentence7: Your train booking was successful. You can pay the fee of 33.2 at the station. Your reference number is 14AXWO0V . Sentence8: Ok. Enjoy your stay. Sentence9: For two people please. I will need the reference number. I also want to stay at the Lensfield hotel. Sentence10: I want to depart from London and arrive in Cambridge. Sentence11: london liverpool street. Sentence12: london kings cross or london liverpool street? Question: Who has spoken the sentence 8? (A) User (B) System
Student:
Answer: (A) User