You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: I am leaving from all saints church. Sentence2: Booking completed! Booked car type : white ford Contact number : 0701197295 Sentence3: Okay, I will just need your departure site first please Sentence4: I need a taxi to go to a and b guest house and arrive by 03:45. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User