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: TR4800 leaves at 07:54 and arrives in Cambridge by 08:43, would you like to book a seat? Sentence2: Will you also check the hotel called Lovell lodge? Sentence3: I am looking for a train that'll leave on friday. Sentence4: Yes can you make me a booking for 8 people? Sentence5: I was able to book that room for you, ref #8XZZ0TYE . Can I help you with anything else? Sentence6: Booking was successful, the total fee is 102.4 GBP payable at the station. Your reference number is 0B1WJ9DR . Will that be all? Sentence7: You're welcome! Have a great day. Sentence8: Great I also need the lovell lodge for 8 people for 2 nights starting wednesday. Sentence9: I'm going to Stevenage from Cambridge. I need to arrive by 09:15. Thanks for your help! Sentence10: I'm sorry, I had to re-book your train, as I had the stations backwards. TR2515 will get you to Stevenage by 6:10. Fee is 102.4 GBP, REF. #N3H045K3 . Sentence11: We have over 400 results. Can you provide me with more information, such as departure site and destination? Sentence12: That is all, you were very helpful. Question: Who has spoken the sentence 5? (A) User (B) System
Student:
Answer: (B) System