You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Chiquito restaurant bar is located in the south part of town and in the expensive price range. Sentence2: Have a good evening. Sentence3: The number is 01223 400170. Sentence4: I don't have any preference. Sentence5: Do you have a phone number for them? Sentence6: I'm looking for an expensive restaurant in the south. Sentence7: Have a good evening. Sentence8: Hi! We have mexican, italian, indian, and chinese restaurants that fit the bill. Do you have any preferences? Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System