Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: You're more than welcome! Sentence2: Little Seoul and I would like the contact number and car type Sentence3: It sounds lovely! I've booked you in a grey Skoda. The contact number is 07240135377 in case you need it. What else may I assist you with? Sentence4: I need a taxi arriving by 23:30. Sentence5: Where will you be going? Sentence6: I'd like to go to people's portraits exhibition at girton college. I've heard it's stunning! Sentence7: Okay, what is your departure site? Sentence8: That was everything. Thank You! Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User