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

Sentence1: You're welcome! Have a great day! Sentence2: No particular department, but may I please have the address? Sentence3: I also need the phone number. Sentence4: No that was all. Thank you. Sentence5: Thank you for using Cambridge TownInfo centre. Good bye. Sentence6: The general phone number is 01223245151. Do you need any further assistance? Sentence7: The address is Hills Rd, Cambridge with a postcode of CB20QQ. Will there be anything else? Sentence8: Thank you! You too. Your business provides a really great service. Sentence9: Addenbrookes Hospital is on Hills Rd, Cambridge. Is there a particular department you need? Sentence10: Where is the nearest hospital? Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System