Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Their phone number is 01799 521260 and their address is 21 - 24 Northampton Road. Sentence2: Yes and the address. Sentence3: Prezzo is a moderately priced italian restaurant in the west part of town. Would you like their phone number? Sentence4: Hello I would like to find a restaurant in the west part of the city that costs a moderate amount. Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System