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

Example Input: Sentence1: I am having difficulty booking either of the. Can you find another day or time that would suit you? Sentence2: Absolutely. Can I suggest the Warkworth House at a moderate price range, or the Autumn House at a cheap price range. Do either of these interest you? Sentence3: OK, you're all booked for 3 nights at the Warkworth House, starting Thursday. Your reference number is AC1NVW47 . Can I help with anything else today? Sentence4: I would consider both. I need to book for three people and 5 nights starting on Thursday. Can either of them offer that? Sentence5: There are 6 possible places that fit your request. Would you like more information or to add additional search preferences? Sentence6: Good Afternoon, I am looking for a place to stay on the east side in a guest house Sentence7: Can you see if any of them offer free parking? Sentence8: You're welcome. Goodbye! Sentence9: I really need to stay during that time frame. Would you mind checking again? Sentence10: No, that will be all. Thanks! Sentence11: Honestly, any price range will do. Can you suggest one for me and help me with booking a room? Sentence12: 5 of the guesthouses offer parking. What is your price range preference? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Sure, it's at granta place, Mill lane. Sentence2: Sure it's a moderately priced 4 star guesthouse in the east. Would you like me to book it? Sentence3: From all of us at Cambridge, we hope you enjoy your stay! Farewell! Sentence4: Thank you so much for all of your help today. I am all set. Bye. Sentence5: Could you tell me their address as well please? Sentence6: Thanks! I'm also looking for information on the A & B Guesthouse. What can you tell me about that place? Sentence7: Yes, the post code for the A and B Guest House is cb12dp. Is there anything else I can do for you? Sentence8: What is the phone number for scudamores punting co? Sentence9: Okay, which would you like to leave from? Sentence10: The phone number for Scudamores Punting Co is 01223359750. Is there anything else I can help you with today? Sentence11: Your taxi is booked. The car is a yellow honda and the contact number is 07826111038 Sentence12: May I have the postcode? Sentence13: I would like to leave the hotel by 7:00. Also, can you give me the contact number and car type once you have booked it? Sentence14: I also need a taxi to go between the two places. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: it should leave the restaurant by 14:00 Sentence2: Just one. Sentence3: I also need to find an Indian restaurant in the east. What ever you recommend. I need the postcode and address as well. Sentence4: I'd like to stick to the cheap price range please in the Centre. Sentence5: For how many, and when would you like to arrive? Sentence6: that will be fine. i also want a taxi to commute between the to places. Sentence7: yes, it has a four star rating. Sentence8: Okay have a great day and a great trip! Sentence9: Thank you so much. That's all I need today. Sentence10: How many people are in your party? Sentence11: I would suggest curry prince. Address is 451 Newmarket Road Fen Ditton and postcode cb58jj. Is there anything else I can assist you with? Sentence12: You're in luck, we have lots of places you can stay at! Do you have an area preference or a price range that you want to stick to? Sentence13: Booking was successful. your Reference number is : PV4MAEDL . is there anything else i can help you with? Sentence14: Awesome, please book it for 2 nights starting Tuesday Sentence15: I am looking for a place to stay. Sentence16: Does it have a star rating of 4? Sentence17: How about Alexander Bed and Breakfast? It is a cheap 4 star in centre. Sentence18: Booking was successful! Your car is a white ford and you can contact them at 97556660882 should you need to. Sentence19: What are your departure and arrival sites and times? Sentence20: Also please provide me with contact number and car type. Question: Who has spoken the sentence 3? (A) User (B) System
Example Output:
Answer: (B) System