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

Sentence1: thank you for using our system. good bye Sentence2: La mimosa is an expensive mediterranean restaurant in the centre part of town. Would you like their location? Sentence3: Thank you good bye. Sentence4: expensive mediterranean restaurant please Sentence5: Thank you, goodbye. Sentence6: What is the phone number and postcode? Sentence7: Thank you for using our system and have a great day! Sentence8: The phone number for La Mimosa is 01223 362525, and the postcode is CB58AQ. Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System