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

Ex Input:
Sentence1: Would that be London Liverpool or London Kings Cross? Sentence2: We don't have any trains going from Ely to London Liverpool or London Kings Cross. Do you need anything else? Sentence3: I will be leaving from Ely and going to london. Sentence4: Are you sure you don't have a preference? Sentence5: Either one is fine with me. Sentence6: On Saturday I need a train that will arrive by 21:45. Sentence7: Yes I'm sure. I need to book that for 5 people. Sentence8: Can you tell me where you will be departing from and heading to? Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: It is free admission into the King's college. Sure I can help with that. What is your price range? Sentence2: There is pizza express it's moderately priced, would you like more information or for me to book it for you? Sentence3: That was all I needed, thank you. Sentence4: I was able to book your table. The Reference number is : WA5JKA4G . Is there anything else you needed? Sentence5: Yes. Do you know what their entrance fee is? Also, I need some help finding an Italian restaurant in the centre area. Sentence6: I don't have a price range preference. Sentence7: Thank you! Sentence8: I also need a taxi to travel between King's College and the restaurant. Sentence9: Yes please. I would like the reservation for Thursday at 15:00 for 2 people. Sentence10: I am looking for King's College. Sentence11: May I help you with any thing else? Sentence12: thanks for using our services and welcome anytime Sentence13: Booking completed! Booked car type : blue tesla Contact number : 07982639539 Sentence14: Yes, King's College is in the centre and located on King's Parade. Their phone number is 01223331100. Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Sounds great, what is their address? Sentence2: I don't care Sentence3: How about nandos? It is a cheap restraunt on Cambridge Leisure Park Clifton Way Sentence4: There are two restaurants available, nandos and nandos city centre. One is in the south and one is in the centre. Sentence5: There are no restaurants serving Australasian food. Would you like something else? Sentence6: Goodbye. Sentence7: I want to find a cheap restaurant and serves australasian food. Sentence8: portuguese food Sentence9: The address is Cambridge Leisure Park Clifton Way, C.B 1, 7 D.Y. Sentence10: Thank you and goodbye! Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User