You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Please pick me up at the scott polar museum Sentence2: I need a taxi to pick me up after 04:15 Sentence3: Alright. And where would you like to be picked up from? Sentence4: Sure! where are you going? Sentence5: Okay, I've booked a taxi for you. Sentence6: Got it. Thanks for helping me. Sentence7: Certainly, the car is a white Honda, and the contact number is 07135860962. Sentence8: Could you give me the car type and contact number? Sentence9: I'm going to the hotel du vin and bistro Sentence10: Your welcome.. Have a great time. Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System