Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Yes, please along with the phone number and the post code. Thanks. Sentence2: It's located at the Grafton Hotel restaurant. The phone number is 01223 241387, and the postal code is C.B 5, 8 P.A. Sentence3: There is one british restaurant in the east part of town called grafton hotel restaurant. Would you like the phone number? Sentence4: I would like a restaurant in the east part of town that serves british food Sentence5: Wonderful, thank you. Sentence6: No problem, have a good time. Good bye. Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User