Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: What day and time will you be departing? Sentence2: Yes, may I have the address, too? Sentence3: Please help me find a train from kings lynn to cambridge. Sentence4: Your reference number is RH4X9U1Z . Do you need anything else? Sentence5: TR1612 will get you there by 9:58. Plenty of time. Sentence6: Friday. I need to arrive by 11:30. Sentence7: Yes, please. I would like to visit a museum while I am in town. Sentence8: Could I get the phone number and postcode of that museum? Sentence9: Be sure to ask if you need anything! Sentence10: Is it in the west? I need something in that area. Sentence11: Awesome. Thank you for using the Cambridge TownInfo centre. Have a great day! Sentence12: that is it i am good now thanks ! Sentence13: If you'd like to be in the west, I recommend Cafe Jello Gallery. Sentence14: Ok, that sounds good. Can I please book 2 tickets? And I'll need a reference number, please. Sentence15: The address for Cafe Jello Gallery is 13 Magdalene Street. Would you like any more assistance today? Sentence16: Sure, the phone number is 01223312112. The post code is cb30af. Do you need any additional information about Cafe Jello Gallery? Sentence17: How about the cambridge artworks? Sentence18: You too, goodbye! Question: Who has spoken the sentence 12? (A) User (B) System
Output:
Answer: (A) User