Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Chiquito restaurant bar is at 2G Cambridge Leisure Park Cherry Hinton Road Cherry Hinton and their phone number is 01223 400170. Sentence2: Thank you, goodbye. Sentence3: your welcome good bye Sentence4: Hi, could you tell me the phone number and address of the nearest Mexican restaurant? Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System