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

Sentence1: Yes, please book for me now. Sentence2: Hi! I need a place to stay in the centre of town. Sentence3: Expensive price range would be just fine. Sentence4: University Arms Hotel is in the centre and the price range is expensive. Would you like to book a room or get more information? Sentence5: Yes, it does include free wifi and parking. Would you like me to book that now? Sentence6: what day would you like to leave, how many days Sentence7: Before I book can I confirm that it includes free wifi and free parking? Sentence8: I have 3 hotels and 2 guest houses in that area. What is your price range going to be? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System