Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Have a nice day! Sentence2: Nope. That'll be it. Sentence3: jesus green outdoor pool and i want to leave after 23:00 Sentence4: Is there anything else I can help you with? Sentence5: Your taxi ride has been booked. You'll be picked up by a blue toyota and the contact number is 07733585413. Sentence6: Hiya, I need a taxi to get me to la margherita. Sentence7: Wonderful, thank you! Sentence8: Not a problem. Can you please let me know where you will be picked up and what time you would like to leave or arrive? Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System