You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Thank You Sentence2: Would you like Chinese or Indian food? Sentence3: I don't care. give me the phone number and postcode . Sentence4: Golden wok serves Chinese food, their phone number is 01223 350688 and their postcode is C.B 4, 3 H.L. Sentence5: You're welcome. Sentence6: a moderately priced restaurant in the north part of town? Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System