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: Ok, thank you for contacting us and have a great day! Sentence2: I want to the gallery at twelve high street. Sentence3: Okay thank you! Sentence4: I am departing from the junction and going to gallery at twelve. Sentence5: I need a taxi to come to gallery at twelve a high street by 4:00. Sentence6: Ok, where do you need to go? Sentence7: You're welcome. Is there anything else I can help you with today? Sentence8: You'll be picked up at the junction, to gallery at twelve a high, by 4:00. Your auto is a grey skoda, contact number: 07355269466. Sentence9: I'm sorry, can you confirm if you're leaving from or going to Gallery at Twelve a High Street? Sentence10: No, that will be all. Thank you. Question: Who has spoken the sentence 8? (A) User (B) System
Answer: (A) User