You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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
Example solution: Answer: (A) User
Example 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: Are you looking to go by train or taxi? Sentence2: We have a train leaving cambridge at 19:40 arriving at stansted airport at 20:08. Should I book seats for you? Sentence3: Happy to be of service - enjoy your day! Sentence4: What type of attraction is is? Sentence5: Train leaving cambridge going to stansted airport on wednesday anytime after 18:45 Sentence6: There is no entrance fee for the people's portraits exhibition at girton college Sentence7: Great, thanks. I also am interested in the People's portraits exhibition at the Girton College, can you tell me more about that? Sentence8: Could you tell me if they have an entrance fee? Sentence9: TR2694 leaves at 19:40 and costs 10.10 pounds Sentence10: It's located in the west of town and is free of charge. Their phone number is 01223338901. Can I help you with anything else? Sentence11: No, not at this time. I would like to know the travel time and price, please? Sentence12: people's portraits exhibition at girton college is a museum in the west area of town. Their address is girton college, huntingdon road. Can I help with anything else? Sentence13: I need to go to the stansted airport on wednesday. Sentence14: that will be all, thanks! Question: Who has spoken the sentence 10? (A) User (B) System
Solution: Answer: (A) User