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

[Q]: Sentence1: Is there anything else I can help you with Sentence2: Okay! What is your departure site? Sentence3: Okay, I've got you a black bmw with the contact number 07083984796. Sentence4: Thank you so much! Sentence5: I need to book a taxi to come pick me up by 10:30 to take me to Midsummer House Restaurant. Sentence6: I'm coming from city stop restaurant. Question: Who has spoken the sentence 1? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Help me reserve a taxi to take me to kambar Sentence2: Sure! when would you like to arrive? Sentence3: Sure! What is your departure site? Sentence4: Great. Have a wonderful day. Sentence5: Okay I booked your taxi successfully Sentence6: It doesn't matter. I just want to leave there after 10:45 Sentence7: I need to leave from lovell lodge Sentence8: Great, what are the details, please? Sentence9: A white honda will be picking you up, the contact number is 07580557287. Is there anything else I can help you with? Sentence10: That's all I need for now. Thank you. Goodbye. Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: The postcode is CB11JG. Can I help you with anything else? Sentence2: Hello, I need information for the nearest police station please. Sentence3: You are welcome. Please let us know if there's anything else we can assist you with in the future. Sentence4: No, thank you for your help. Sentence5: The telephone is 01223358966 and the address is Parkside, Cambridge. Is there anything else I can help you with? Sentence6: Can I have the postcode please? Question: Who has spoken the sentence 4? (A) User (B) System
[A]:
Answer: (A) User