Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Great. And where will you be leaving from? Sentence2: Booking completed! Booked car type : blue tesla Contact number : 07288413004 Sentence3: i need a taxi by 8:15 going to the golden hous Sentence4: I'll need to be picked up at holy trinity church. If you've got it handy I'll be needing the car type and their contact number too, please. Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System