You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I will need a taxi to get to the botanic gardens. Sentence2: am also looking for a particular restaurant. Its name is called the copper kettle Sentence3: Can you help me find Cambridge University Botanic Gardens? Thanks. Sentence4: Great that's all I needed, thank you. Sentence5: The postcode is cb21sj. Can I help you with anything else? Sentence6: No problem, we are always here to help. Good day! Sentence7: I'm sorry, I do not have that information. Sentence8: what's the postcode? Sentence9: Ok. The copper kettle is a british restaurant located at 4 Kings Parade in city centre. Sentence10: Do you need it from the restaurant? What time would you like to leave? Sentence11: Do you know the hours that they are open? Sentence12: I would like to leave by 21:15. Could you provide a contact number and car type? Sentence13: I'm looking at Yellow Lexus that will pick you up from the restaurant. The contact number is 07336692498. Sentence14: Yes, cambridge university botanic gardens is a park located in the centre of town, there is a 4 pound entrance fee. Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System