Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: food type, book a hotel, buy a train ticket ... Sentence2: Thanks. I can look for that one later when I book. I'm also looking for a restaurant called the Shiraz. Sentence3: Thank you for using our system today Sentence4: I need a train. The train should depart from cambridge and should leave on saturday. Sentence5: Great, I found the Mediterranean restaurant called Shiraz. Their telephone number is 01223307581. Sentence6: Thank you that is all I need for now. Sentence7: i'm sorry could you clarify what it is you're looking for? Sentence8: Norwich and i need to leave after 16:30 Sentence9: I need to know where you are going and when. Sentence10: TR6880 would fit your needs weel Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System