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: The booking was successful. The reference number is : 37DDZB4H . Sentence2: Can you find me a train from Leicester to Cambridge on Saturday> Sentence3: I do need the price and arrival time first. Sentence4: I'm open. What would you recommend? Sentence5: I'm on the North side, please find me an expensive restaurant here Sentence6: I'd recommend The Hotspot. It's a Chinese restaurant. Would you like to book a table? Sentence7: It arrives at 18:54 and is 30.24 pounds. Sentence8: Great, have a terrific trip! Sentence9: The TR7824 bus leaves at 17:09. Would you like to book this one? Sentence10: Thank you, that is all I need, you helped me a lot. Sentence11: Would you prefer Chinese, French, or European cuisine? Sentence12: What time would you like to arrive by? Sentence13: Yes please, book me for 4 people at 13:15 on friday. Sentence14: I just need to leave sometime after 16:30. Question: Who has spoken the sentence 11? (A) User (B) System
Solution: Answer: (B) System