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

Sentence1: The Missing Sock is a cheap international restaurant in the east side. Would you like the address or phone number? Sentence2: Yes, please. Could you tell me both the address and phone number? Sentence3: Thank you. Good bye. Sentence4: Thank you and goodbye! Sentence5: They are at Finders Corner Newmarket Road, and their number is 01223 812660 . Sentence6: I am looking for a cheap restaurant in the east part of town. Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System