Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I want a taxi to saint barnabas press gallery Sentence2: I'll be leaving from the gardenia. Sentence3: Thank you for contacting Cambridge TownInfo centre. Sentence4: Sure! when would you like to arrive? Sentence5: I need to arrive by 02:15 please Sentence6: I do. The contact number is 07565551226. Sentence7: I was able to book a white Honda to come pick you up. Sentence8: Do you have a contact number? Sentence9: And where shall the taxi pick you up from? Sentence10: That's all I need thanks Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System