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

Sentence1: I don't care Sentence2: I found two French restaurants, one in centre and one in north. Do you have a preference on area? Sentence3: Do you have a preference on the price? Sentence4: Cote is a good french restaurant. It is located at bridge street city centre and its phone number is 01223311053. Is there anything else I can help you with? Sentence5: I don't care. Sentence6: I would like a restaurant that serves brazilian food Sentence7: No, that is all I need. Thank you and goodbye! Sentence8: there are no restaurants that serve brazilian food. Sentence9: Goodbye. Sentence10: Please search for French food. I will also need the address and phone number. Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System