You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example input: 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 output: 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
Q: Sentence1: Thank you. What's the area for the Cafe Jello Gallery? Sentence2: Alright, can you find me a train to Leicester on Tuesday after 20:15? Sentence3: The area doesn't matter, but I do need to know the entrance fee. Sentence4: It doesn't matter. Can you just recommend one and tell me the entrance fee? Sentence5: You are welcome. Thank you for getting in touch with Cambridge TownInfo Centre. Goodbye. Sentence6: There are 4 trains that depart Cambridge for Leicester after 20:15. The first one leaves at 20:21, and they run every hour. Sentence7: No, thank you. I believe that is all I need today. Sentence8: Cafe jello gallery has a free admission. Sentence9: Can you tell me which museums I can go to in Cambridge? Sentence10: That one is located in the west. Sentence11: There are so many. In order to narrow it down, do you want something with free admission. And are you open to a suggestion? Sentence12: TR0378 arrives at 22:06. The travel time is 105 minutes. Can I help you with anything else? Sentence13: I'm sorry, my mind is not all there today. I have not found a train for you yet. Where are you departing from? Sentence14: You are free to choose whichever one you want. There are 23 choices, is there a preference by area? Sentence15: Please pick the earliest one and give me the following info about them: travel time, train ID, and arrival time Sentence16: I am leaving from Cambridge and going to Leicester. Sentence17: ok you are set Sentence18: What is the train ID you found? Question: Who has spoken the sentence 4? (A) User (B) System
A:
Answer: (A) User