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

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
Answer: (B) System

Sentence1: I'm departing from the oak bistro. Sentence2: I have the taxi ready for you Sentence3: I would like to leave after 17:00. Sentence4: Hi, I need a tax to queens' college please. Sentence5: What time would you like to leave? Sentence6: What is your departure site? Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Was there anything else I could assist you with today? Sentence2: Sure. I booked you into the Cambridge Chop House on Thursday at 12:30. Your reference number is 8NI5A15M . Sentence3: I don't care what cuisine. I would like a table for 1 at 12:30 on Thursday. I will need a reference number also. Sentence4: There are 33 to choose from. Any type of cuisine you'd prefer? Sentence5: Okay, wonderful. Thank you for your help. Sentence6: I am looking for an expensive restaurant in the centre Sentence7: Thank you for booking with us today. Enjoy your reservation! Sentence8: No, you were extremely helpful. Thank you. Goodbye. Question: Who has spoken the sentence 3? (A) User (B) System

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Answer: (B) System

