Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: TR6247 leaves Leicester at 14:09 Friday and arrives in Cambridge at 15:54. Will that work for you? Sentence2: I'd like whichever arrives by 16:15 please. Sentence3: Alright. Booking was successful. Your reference number is 87MI5OVY . Sentence4: There are trains running from Leicester to Cambridge every hour from 5:09 to 23:09 on Friday. Did you have a particular time in mind? Would you like to book tickets? Sentence5: Can you help me find a train please? Sentence6: Where are you leaving from, please? Sentence7: You're welcome. Have a great day. Sentence8: Thanks for your help. That's all I need. Sentence9: What day would you like to leave? Sentence10: Sure! Where are you headed? Sentence11: Friday is preferable. Sentence12: That will be fine. book for 3 people Sentence13: I am headed to Cambridge this week. Sentence14: I will leave from Leicester. Question: Who has spoken the sentence 6? (A) User (B) System
Output:
Answer: (A) User