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: I need a train going to bishops stortford leaving after 16:15. I need eight tickets and the reference number please. Sentence2: What is the address? Sentence3: They are located on Sidgwick Avenue and they have free entrance. Anything else I can help you with today? Sentence4: Have a very nice day and thank you for calling. Sentence5: There are some great colleges in the west. Or perhaps the Museum of Classical Archeology? Sentence6: They are museums. Sentence7: I am looking for somewhere to go in the east. Sentence8: I would like to travel on friday. Sentence9: Where will you be leaving from? Sentence10: There's a boat dock, museums, or some entertainment venues in the east. Do any of those sound interesting? Sentence11: No that's all for today, thank you. Sentence12: What day would you like to travel? Sentence13: My bad, I meant the west. Sentence14: I will be coming from Cambridge. Sentence15: Okay your train reference number is YXCN2XHO . Is there anything else you need? Sentence16: Thanks so much. What type of attraction are they? Question: Who has spoken the sentence 4? (A) User (B) System
Solution: Answer: (A) User