Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: There are no restaurants available matching your criteria. Would you like to try a different area, price range, or food type? Sentence2: The phone number for gourmet burger kitchen is 01223 312598. Sentence3: Thank you for using the Cambridge restaurant system. Goodbye. Sentence4: What price range are you looking for? Sentence5: Is there any place here in the centre that serves corsica food? Sentence6: Can I get the phone number? Sentence7: Any price range will do. Sentence8: Yes. The gourmet burger kitchen serves north american food and is located in the centre part of the city. Would you like their location? Sentence9: Are there any restaurants in the centre that serves North American type of food? Sentence10: Thank you. Good bye. Question: Who has spoken the sentence 9? (A) User (B) System
A:
Answer: (B) System