You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: That is all I need. Thank you. Sentence2: I want to go to lensfield hotel Sentence3: Can a taxi pick me up at carolina bed and breakfast? Sentence4: When do you want to leave by? Sentence5: I'll also need the contact number please. Sentence6: Thank you for contacting Cambridge TownInfo centre, and have a nice day. Sentence7: Your contact number is 07744553058. May I help you with anything else? Sentence8: The taxi is booked for 24:15. It is a yellow Volkswagen. Sentence9: What is your destination? Sentence10: I want to be sure and leave after 24:00 Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System