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

Sentence1: Any Sentence2: Hello there! I am looking for a restaurant that specializes in Swedish food. Sentence3: Thank you for using our system. Goodbye! Sentence4: The address is 40428 King Street City Centre and the phone number is 01223 518111. Sentence5: Yes please and the phone number as well. Thank you. Sentence6: Charlie Chan has cheap chinese food located on Regent Street City Centre, phone 01223 361763 Sentence7: how about asian oriental? Sentence8: Excellent. That is all I needed. Have a good evening and thank you! Sentence9: What area would you like? Sentence10: Do you have any moderately priced listings for asian oriental? Sentence11: There is the Yippee Noodle Bar. Would you like the address? Sentence12: There is no Swedish restaurant. Would you like to change your query? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User