Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: I need to get a train ticket for friday please. Sentence2: Yes. Please book for 1 person. Sentence3: Yes I have a train that leaves at 13:32. Will that do? Sentence4: Will you be needing the reference number? Sentence5: Yes, if I could please get the reference number. Sentence6: Reference number is : IVX6L3KV . Can I help with anything else? Sentence7: Where will you be departing from and traveling to? Sentence8: I need to get to Cambridge from Broxbourne and I'd like to leave after 13:15. Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System