Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Great. Can I get the phone number, address, and postcode please? Sentence2: Sure! The phone number is 01223245151, the address is Hills Rd, Cambridge, and the post code is CB20QQ. Sentence3: Addenbrookes Hospital is located on Hills Rd, Cambridge. Sentence4: Thanks that's all I need for now! Sentence5: What hospitals are located in town? Sentence6: You're welcome. I hope everything is okay! Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System