Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: You're welcome. And I apologize again for the confusion. If I can help you with anything else in the future don't hesitate to ask. Sentence2: You are booked! Your car is a red audi and contact number is 07727005105 Sentence3: That's it for today. Thank you. Sentence4: Just to confirm - you wanted picked up at alexander bed and breakfast correct? Sentence5: no, he taxi should depart from hotel du vin and bistro Sentence6: Sure thing, when you like to leave by? Sentence7: Alright, I'll fix it for you Sentence8: I want to arrive there by 07:00 Sentence9: I'm sorry for the mixup. Your taxi is a white lexus. The contact number is 07770889191. Is there anything else? Sentence10: Thank you that is all I need today. Sentence11: I'll be requesting a taxi to golden house please Sentence12: Thank you for your help Question: Who has spoken the sentence 11? (A) User (B) System
Output:
Answer: (B) System