You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: There aren't any belgian restaurants in the area. Would you like to search for something else? Sentence2: Portuguese, please. Sentence3: I'm looking for a restaurant that serves belgian food Sentence4: Thank you for choosing our system. Good bye Sentence5: Absolutely, nandos is located at cambridge leisure park clifton way. Its phone number is 01223327908. Would you like anything else? Sentence6: For portuguese food, there is Nandos in the south part of town or Nandos City Centre. Would you like the contact information for either of those? Sentence7: Thank you goodbye. Sentence8: Yes, please. I will take the phone number and address for Nandos in the south area. Question: Who has spoken the sentence 7? (A) User (B) System
A:
Answer: (B) System