You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

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
Why? 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: Sentence1: I would be happy to help. Those trains leave every hour, starting at 05:11. How early do you want to depart? Sentence2: I need a train going from Cambridge to Kings Lynn on Sunday. Sentence3: all saints church is very nice can I give you information on that one? Sentence4: Booking was successful, the total fee is 39.2 GBP payable at the station . Reference number is : 20RFDCGC . Sentence5: Sure. What would you like to know ? Sentence6: Can you help me find an architecture attraction to visit? Sentence7: Yes please, what area of town is it in? Sentence8: anything after 13:00 please Sentence9: It is in the centre and it's free. Sentence10: I am looking for information in Cambridge Sentence11: Yes, I can help with that. There are 5 attractions in the center of Cambridge, 4 are churches and the other is an old school. 4 are free and 1 costs 2 pounds. Do you have any preferences or would you simply like a random recommendation? Sentence12: That's perfect please make a booking for 5 and then let me have the reference number. Also can you help me find an architecture attraction? Sentence13: Sounds great. That is all I needed. Bye. Sentence14: Okay perfect. Have a great day, goodbye. Sentence15: Just give me a recommendation please. Sentence16: I have the TR8241 leaving at 13:11. Will that work? Question: Who has spoken the sentence 5? (A) User (B) System
Solution:
Answer: (B) System