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

Sentence1: Happy to be of help, and I hope you enjoy the museum. Goodbye! Sentence2: I suggest Byard art. The address, postcode, and area are 14 king's parade, cb21sj, and it is located in the south. Sentence3: I want a museum, please? Please include address, postcode, and area. Sentence4: Great. Thanks for all your help. That's all I needed. Goodbye. Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System