Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I have to options for Thai food in the expensive price range, Bangkok City and Sala Thong. Sentence2: Is there anything else? Sentence3: May I have the address and postcode for Sala Thong, then? Sentence4: The address of Sala Thong is 35 Newnham Road Newnham and the postcode is C.B 3, 9 E.Y. Sentence5: I am looking for an expensive restaurant that serves Thai food. Sentence6: Thank you goodbye. Sentence7: Those are the only results for expensive Thai food. Sentence8: Thank you for using our system. Good bye Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System