Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
See one example below:
Problem: 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
Explanation: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Problem: Sentence1: Great and welcome! How about friday at 05:17? Is that time acceptable? Sentence2: I am looking for a train going to Cambridge. Sentence3: yes, that is perfect. Sentence4: You're welcome! Have a great trip! Sentence5: I have not been myself but hear it is nice. It serves Indian food on the west end of town. Would you like me reserve a table for you? Sentence6: Nope, that takes care of everything. Thank you! Sentence7: I've booked you 2 tickets on train TR5219 from london kings cross to cambridge on friday. The total fee is 47.2 pounds and your reference number is DVRX2C6V . Sentence8: Yes please, 2 people at 20:30 on sunday. Can I also get a reference number? Sentence9: Yes, please. Two tickets. Sentence10: I was able to book that table for you (Ref #UU2PWIV7). Can I help you with anything else today? Sentence11: It will cost 23.50 pounds and the travel time will be 51 minutes, would you like to book it? Sentence12: Thanks. A friend told me about a restaurant called the rice boat. Do you know it? Question: Who has spoken the sentence 1? (A) User (B) System
Solution:
Answer: (B) System