You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Little Seoul is a Korean restaurant in the city centre, serving expensive food. Sentence2: Little Seoul is located at 108 Regent Street City Centre and their telephone number is 01223 308681. Sentence3: You're welcome, goodbye. Sentence4: I'd like a restaurant with Korean food please. Sentence5: What is their address and phone number? Sentence6: Thank you, goodbye Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System