Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: You are welcome. Please comeback if we can do anything more for you! Sentence2: Currently planning to come out there but need to find a train that leaves after 15:30 and that will depart from Norwich. Sentence3: My pleasure. Enjoy your time in Cambridge. Goodbye. Sentence4: Yes, wandlebury country park is located at wandlebury ring, gog magog hills, babraham, with phone #01223243830. Would you like any other information? Sentence5: What day do you want to travel on? Sentence6: That is all that I needed. Thank you so much for the assistance. Sentence7: Al set, your reference number is ZIY4Y3CA, the cost is 17.60 pounds per person payable at the station. Sentence8: Yes. I will need two tickets. Sentence9: I would like to leave on Monday. Sentence10: I do not have a train that leaves by 15:30 on that day but soon after at 16:16. Would this work for you? Sentence11: Can I also get information on wandlebury country park. Sentence12: I will. Thanks again. Good-bye. Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System