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

Ex Input:
Sentence1: You have been very helpful. Thank you. goodbye. Sentence2: Yes I certainly can! Your reservation was successful and your booking reference is 5F3KBH78 . Sentence3: Can you make reservations for 6 at 14:30 on Thursday? Sentence4: The J restaurant serves cheap asian oriental food in the centre of town. Their phone number is 01223307581. The address is 86 Regent Street City Centre. Sentence5: Can you tell me about the J Restaurant? Sentence6: Glad to help. Have a great day and enjoy your meal. Good bye. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Your booking was successful! Your reference number is EV4ADBI9 . Sentence2: I need it for Sunday. Sentence3: Yes. Let's book it. Sentence4: I would like it to be in the west. It doesn't matter if it has free parking or not. Thank you! Sentence5: There are four three star guest houses. Is there an area of town that interests you the most? Sentence6: Train TR3154 leaves cambridge at 13:06 and will arrive at peterborough at 13:56 on Monday. Would you like me to book a ticket? Sentence7: I am looking to stay at a guesthouse that has a 3 star rating. Sentence8: ok for how long and how many people please Sentence9: I want a train that goes to peterborough and leaves after 13:00 Sentence10: Does it leave on Monday? Sentence11: There is the hobsons house. Would you like me to book it? Sentence12: For 3 days and 2 people,I need a confirmation number too Sentence13: and what day do you need the reservation for? Sentence14: The next train is the TR0545 leaving cambridge at 13:06. Would you like me to book it or more information? Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: I don't need a booking, just an address. Sentence2: I will need to book the hotel for 2 nights, with 8 people starting on Sunday, May 7. Sentence3: May i suggest the oak bistro? It has a moderate price range and excellent quality. Would you like me to book a table for you? Sentence4: Is there anything available for just 1 night? Sentence5: Can you find a restaurant that serves british food and is in the centre? Sentence6: The oak bistro is located at 6 Lensfield Road. Sentence7: I've found the Alexander Bed and Breakfast that would meet your needs. Sentence8: That's great! Thank you very much. Sentence9: You are very welcome. Have a good day. Sentence10: Yes, I was able to book the alexander for one night! Your Reference number is : AWHCN41U Sentence11: There are seven restaurants in the center of town serving British food. What price range are you looking for? Sentence12: I am looking for something in the moderate price range. Can you also provide me addresses? Sentence13: I'm also looking for a guesthouse with a 4 star rating. I would prefer the same area with free wifi. Sentence14: I'm sorry, but they have no vacancies for that stay. I could try a different day or perhaps just try booking one night for you. Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:

Answer: (B) System