Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: Let me know if I can be of further assistance. Sentence2: Yes, the postcode is cb21sj. Is there anything else I can assist you with? Sentence3: I have 8 trains leaving after 08:30. The first one leaves at 09:29. Would you like me to book it? Sentence4: The Byard Art is in the south. Would you like more information? Sentence5: The price is 10.10 pounds. Sentence6: I'm looking for a museum in the south. Sentence7: The phone number is 01223464646. Sentence8: Can I also have the postcode? Sentence9: Yes, thank you. May I have their phone number? Sentence10: Yes, I'm also looking for a train from Cambridge that will leave after 08:30. It should leave on Thursday, and I want to travel to Bishops Stortford. Sentence11: Thank you. That's all I need today. Sentence12: Can I just get the price on that one? Question: Who has spoken the sentence 1? (A) User (B) System
A:
Answer: (B) System