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

Ex Input:
Sentence1: Booking was unsuccessful. Do you have a different time preference? Sentence2: Is it in the expensive price range? Sentence3: Yes book a table, thank you. Sentence4: I was happy to help, enjoy your meal. Sentence5: Sure, try booking that one for the same people, date, and time, please. Sentence6: Can you please give me a day and time that you would like to book a table for? Sentence7: No, that's all I need. Thank you for your assistance! Sentence8: I am looking for Korean food, in the Centre of town. Sentence9: No. How about finding another restaurant in the same area and price range. Sentence10: I've booked your table for 7 people on Monday at 13:45 at Kymmoy. Your reference number is 1MS5BUU6 . Is there anything else I can help you with today? Sentence11: There is one Korean restaurant in the centre, Little Seoul. Would you like the address and phone number? Sentence12: How about Kymmoy? It's an Asian restaurant in Expensive price range, located in Centre area. Sentence13: Yes, it is expensive. Are you interested in booking a table there? Sentence14: 13:45 on monday and a table for 7 please. I will need a reference number too. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Hi, I just had a fight with someone regarding an automobile accident we had and I need to contact the police! Sentence2: I have the parkside cambridge police telephone 01223358966. Sentence3: always welcome. at your service Sentence4: Thank you, Goodbye Sentence5: I'm not sure where you are, but the police postcode is CB11JG. Sentence6: Can I get the zip code or postal code for the area I'm in right now? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Some type of fancy architecture would be neat. Sentence2: you are welcome to use our services anytime. Sentence3: The booking was successful. The table will be reserved for 15 minutes. Reference number is : EIYUL9L9 . Sentence4: all saints church has some stunning architecture and is located in the centre. It's also free to visit! Sentence5: Yes please, for 5 people at 13:00 on Tuesday. Sentence6: Thanks! Can you also tell me about J Restaurant? Sentence7: Yes, I'd like to know what there is to see in the center of town. Sentence8: No problem. I've arranged for a blue Ford to pick you up at All Saints in time to reach the restaurant at 1 pm. The number is 07245127340. Anything else? Sentence9: Great, I like free! Can you give me the postcode and phone number to all saints church please? Sentence10: Absolutely, its an Asian Oriental restaurant, listed as cheap price range, & located in the centre area. Would you like me to book a table for you? Sentence11: There are over 40 attractions in city centre. Do you have any ideas on what type of attraction you'd like to visit? Sentence12: Phone number is 01223452587 and postcode is cb58bs. Sentence13: No that will do it. Thanks a lot. Goodbye. Sentence14: Can you book me a taxi to take me from the church to get me to the restaurant for my reservation? Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:

Answer: (A) User