Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: Hello, I'm looking for a restaurant that serves mondern european foods for modest prices. Sentence2: That sounds terrific. Thank you. Sentence3: Yes, can you make reservations for us? We'll need a table for 6 on Sunday at 16:30. Sentence4: Is there anything else I can help you with? Sentence5: Yes, there's The River Bar Steakhouse and Grill located in the centre and is on Quayside Off Bridge Street. Their phone number is 01223307030. Sentence6: Your booking was successful! Your reference number is DA8CHTDS . You need need anything else? Sentence7: You're welcome, good bye! Sentence8: No, that's it. Thank you. Good-bye. Question: Who has spoken the sentence 7? (A) User (B) System
A:
Answer: (B) System