Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: Yes, your contact number is 07698022958. Can I assist you any further? Sentence2: Can i get the contact number please Sentence3: I need a 19:15 taxi to take me to Avalon. Sentence4: I can definitely help! Where are you departing from? Sentence5: You're very welcome! Goodbye. Sentence6: No, that will be all. Good bye. Sentence7: You car has been booked. It is a black volvo. Can I assist you any further? Sentence8: I will be departing from Primavera. Question: Who has spoken the sentence 4? (A) User (B) System
A:
Answer: (A) User