You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: I would like to leave after 14:30 . Sentence2: Where will you be departing from? Sentence3: Thanks for using the Cambridge TownInfo Centre. Goodbye! Sentence4: I will be departing from Norwich. Sentence5: Yes. That works. I need 3 tickets, please. Sentence6: Booking was successful, the total fee is 70.4 GBP payable at the station . Reference number is : 1MI35913 . Sentence7: What tie would you like to leave Norwich? Sentence8: I have several trains. How would TR1156 work for you, it leaves at 15:16 arriving at 16:35? Sentence9: I'm are looking for a train. The train should go to cambridge and should leave on saturday. Sentence10: Great, thank you for your help! Question: Who has spoken the sentence 2? (A) User (B) System
Output:
Answer: (A) User