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: I have about 8 trains going that route. The last train for that route arrives at 20:07. It leaves at 19:29. Would this arrival time work for you? Sentence2: Not a problem. What day will that be for? Sentence3: Okay great. Thank you very much. Sentence4: No thank you. Sentence5: Is there anything else I can help you with? Sentence6: I am sorry, I have no details for restaurants at your Bishops Stortford destination. Can I help you with anything else? Sentence7: Are you sure? If you know which area, (east, west, centre, etc...), or what type of food you're looking for, I would be happy to find you a restaurant. Sentence8: No, that's all. Thanks! Sentence9: I want to book a train that departs from Cambridge and arrives in Peterborough by 21:45. Sentence10: Yes, please book this for 4 people, please give me the reference number. Sentence11: I would like to book a restaurant for 4 people after I arrive. Sentence12: Ok. TR 4673 is booked for 4 people. The reference number is BY93GO28 . Sentence13: I would like to travel on Saturday., Cambridge to Bishops Stortford. Sentence14: You are welcome. Thank you for calling Cambridge TownInfo Centre. Goodbye. Question: Who has spoken the sentence 1? (A) User (B) System
Solution:
Answer: (B) System