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: Would you like me to book that for you? Sentence2: I would like a guesthouse. The star rating doesn't matter, but the hotel should include free wifi. Sentence3: Can I help with anything else? Sentence4: I will need to leave from Ely. Sentence5: I need a train going to Cambridge and arriving by 12:45. Sentence6: There is a train departure on Friday from Ely to Cambridge that arrives by 11:52. Do you want that instead? Sentence7: Thank you. That was all I needed. Sentence8: The Acorn Guest House was successfully booked for Friday for 2 nights for 4 guests. Your Reference number is : GWZ3QLV5 . Sentence9: I would appreciate that. Is there only one option that arrives by the time I need? Sentence10: Definitely! Would you like a guesthouse or a hotel, and do you have a star rating requirement? Sentence11: Will I be able to find any moderately priced rooms to stay in in the north part of Cambridge? Sentence12: There are a number of guesthouses that fit your criteria. I would recommend the Acorn Guest House. It has a 4-star rating. Does this work for you? Sentence13: Sure, I can assist you with that. Where were you wanting to leave from? Sentence14: Can you book Acorn Guest House for 4 people for 2 nights starting friday? Question: Who has spoken the sentence 9? (A) User (B) System
Student:
Answer: (B) System