Given the task definition, example input & output, solve the new input case.
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
Output: Answer: (A) User
The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

New input case for you: Sentence1: Please just tel me which one you think best, then provide the area it is in and the phone number. Sentence2: queens' college is pretty great. It's in the west. Their number is 01223335511. Sentence3: The arrival time for that train is 18:10, is there anything else I can help you with? Sentence4: What day would you like to travel, and what time would you leave or arrive by? Sentence5: Have a great day! Sentence6: What is the arrival time? Sentence7: Sure, there's lots to do here? Is there a certain area or type you're looking for? Sentence8: Yes, book me for 1 please. Sentence9: Hi, I'm planning a trip to Cambridge. Can you suggest some places I could visit in town? Sentence10: I would like that the train should leave on saturday and after 16:15. Sentence11: No. Thank you Sentence12: What is the train ID? Sentence13: What's your favorite college to visit? I'm not picky about the area. Sentence14: Alright, TR4216 leaves at 17:21. Would you like me to book you passage? Sentence15: There are 18 of them in the city. Do you mind an entrance fee or would you prefer one that's free? Sentence16: The train ID is TR4216. Can I help you with anything else today? Sentence17: That's fine. I also need a train from Cambridge to stevenage. Sentence18: You're all set. Your reference number is R55DTSWS and there will be a 10.24 GBP fee due at the station. Question: Who has spoken the sentence 2? (A) User (B) System
Output:
Answer: (A) User