Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Thank you for your help Sentence2: You are more than welcome! Sentence3: I have the emergency department at 01223217118. Sentence4: The Addenbrookes Hospital is located at Hills Rd, Cambridge Postcode CB20QQ. Sentence5: I got injured and are looking for a hospital nearby Sentence6: Could you also provide the phone number please? Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User