You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: sure i will, thank you Sentence2: I'm looking for a train. The train should depart from cambridge and should go to london liverpool street Sentence3: If you'd like us to reserve tickets for you, please keep us in mind. We would be happy to help with that. Sentence4: You're welcome and thanks for using our help desk. Goodbye. Sentence5: I can help with that! What day will you be traveling? Sentence6: Tuesday, leaving sometime after 19:45. Sentence7: thank you very much,that's2 all Sentence8: Train TR3515 will be leaving Cambridge at 19:59 on Tuesday, and will arrive at London Liverpool Street by 21:27. Would you like me to book it for you? Sentence9: Yes please! Could you please give me a price? Sentence10: The price is 16.60 pounds. How many tickets will you be needing? Question: Who has spoken the sentence 2? (A) User (B) System
A:
Answer: (A) User