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: What is their phone number Sentence2: Little Seoul is a Korean restaurant in the epensive price range. It is located in the centre area. Sentence3: the phone number is 01223 308681 Sentence4: Hello. Can you please recommend a Korean restaurant for me? Sentence5: What is the address? Sentence6: Goodbye! Sentence7: Little Seoul is located at 108 Regent Street City Centre. Is there anything else I can do for you today? Sentence8: Thank you, goodbye. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User