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: I can help you with that. Which hotel are you looking for? Sentence2: They are located at Castle Street. Do you need anything else today? Sentence3: A Grey Honda has been book to pick you up by 23:45 at Kettle's Yard and take you to The Lensfield Hotel. Is there anything further today? Sentence4: I am also looking for an attraction called the kettle's yard. Sentence5: The contact number for your taxi is 07210623485. Anything else I can help you with today? Sentence6: It was my pleasure. Take care. Goodbye. Sentence7: The postcode is cb21en. Do you need anymore information? Sentence8: Can I get the postal code for that hotel? Sentence9: Can I have the address for kettle's Yard, please? Sentence10: No, that's it. You have been most helpful. Goodbye. Sentence11: I would like to locate a particular hotel Sentence12: I'd like to book a taxi from Kettle's Yard back to the hotel. I'd like to leave around 23:45. Sentence13: It is located at 53-57 Lensfield Road. Sentence14: Kettle's Yard is a museum in the west. Their phone is 01223748100. No entrance fee. Sentence15: I am looking for lensfield hotel. Sentence16: Yes, can I have the contact number for the taxi, please? Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System