Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: On Sunday. Sentence2: TR941 leaves at 9:01 would you like me to book it? Sentence3: No, thank you, that is all for now. Have a great day. Sentence4: I'm looking for a train. The train should leave after 09:00 and should go to broxbourne. Sentence5: Yes please. I need that booked for 8 people. Sentence6: What day will this be on? Sentence7: You're welcome. Have a great trip! Sentence8: I was able to get you 8 tickets. Your reference number is V2XTDMK6 . Can I help you with anything else? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User