Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: There are 31 options available. The first leaves at 8:34 and arrives in Peterborough at 9:24. Does that work for you? Sentence2: Okay, thanks so much for your help. Goodbye! Sentence3: You're welcome, thanks for contacting us. Text back any time! Sentence4: Sure. Can you please tell me the price? Sentence5: There are so many! Did you want something near the centre? I have Museums, cinemas and parks! Sentence6: Could I just get the phone number please? Sentence7: There are actually 7 museums in the west. I highly recommend Cambridge Book and Print Gallery. Would you like the postcode and address? Sentence8: Thank you. There's one more thing. I have a few hours to unwind while I am in town. What type of attractions are available? Sentence9: I am looking for a Cinema in the west. Is one available in the area? If not, how about a Museum in the same area? Sentence10: Ok, I have many trains meeting that criteria. What day would you be traveling and what is your destination? Sentence11: The total price is 16.50 pounds. Sentence12: I need to find a train that leaves Cambridge after 08:15. Sentence13: I'm looking to travel on Friday from cambridge to peterborough, please. Sentence14: The phone number is 01223694264 Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User