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: It is free to enter and type is architecture. May I help you with anything else? Sentence2: No, you have been very helpful today, thank you. I am all set. Goodbye. Sentence3: Their phone number is 01223332320. Do you need anything else? Sentence4: I need a train going to cambridge. Sentence5: Yes, what is their entrance fee and attraction type? Thanks! Sentence6: On Thursday any time after 21:00. Sentence7: Where will you be departing from? Sentence8: I will departing from birmingham new street. Sentence9: I would recommend TR7324 which leaves Birmingham New Street at 21:40 and arrives at Cambridge at 24:23. Sentence10: Thank you for using our service! Sentence11: Your booking for one ticket is complete. Your reference number is VEG5Q87Q and 75.09GBP will be due at the station. Sentence12: Absolutely! What day and time would you like to leave? Sentence13: Yes. What is the phone number? Sentence14: Yes can you book that for 1 person? Sentence15: Yes, Old Schools is located in the centre area, and has no entrance fee. Anything else I can assist you with? Sentence16: I am also looking for a attraction called old schools. Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System