You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: There are 5 moderately priced restaurants that serve British food. Saint Johns Chop House in the west, and Cotto, Restaurant One Seven, The Copper Kettle, and The Oak Bistro in the city centre. Sentence2: What about British food? Sentence3: Yes, here it is 01223 353110. Sentence4: That's it, goodbye Sentence5: Saint Johns Chop House sounds good. Could you give me the phone number? Sentence6: Thank you for using the Cambridge restaurant system, goodbye. Sentence7: Thank you so much. Sentence8: Can I help you with anything else today? Sentence9: There are no restaurants for Austrian food matching your request. Sentence10: I want to find a moderate price restaurant and serving austrian food. Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System