Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: Thank you and have a great day! Sentence2: Your booking is complete, a grey toyota will be picking you up. Sentence3: Hi! I need a taxi from little saint mary's church to trinity college. I sure hope you can help me! Sentence4: I'll also need the contact number. Sentence5: Of course, the number is 07655357606. Can I help with anything else? Sentence6: I need to leave after 24:45. Sentence7: No, that's it. Thank you. Sentence8: Sure thing, when you like to leave by? Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System