Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Sure! when would you like to arrive? Sentence2: I want to arive by 23:00. Sentence3: I would like to reserve a taxi from rosa's bed and breakfast. Sentence4: Thank you. Is there anything else Sentence5: I have confirmed you booking, a yellow volvo will pick you up. Sentence6: The contact number is 07854319661. Sentence7: Thanks, that's all I need today. You've been a great help. Sentence8: I will be going to cityroomz. Sentence9: Got it. And what is your destination please? Sentence10: What is the contact number, please? Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System