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

Example Input: Sentence1: Would you like to book a room at the acorn guest house? It is in the moderate price range like the Hamilton Lodge. Sentence2: Nope. I think that is all I need. Thanks for your help! Sentence3: Yes that will be fine. Sentence4: Your booking was successful. Your reference number is 1WRSIG9U . Is there anything else I can help you with? Sentence5: Happy to help. Have a great day! Good-Bye! Sentence6: I am sorry the booking was unsuccessful,can I help you find another place in the same area? Sentence7: Yes please. I'd like a room for 5 people on Monday for 5 nights. Sentence8: Yes, this guesthouse is open. Do you need help with booking? Sentence9: How about another hotel in the same price range? Sentence10: Howdy! Is the Hamilton Lodge still open? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I am looking for a police station in Parkside Sentence2: Best wishes to you. Have a good day. Sentence3: No. That's all I wanted to know. Thanks. Sentence4: There is a police station in Parkside. The postal code is CB11JG and the phone number is 01223358966. Is there anything else I can help you with? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: TR5713 leaves at 15:50 and arrives by 16:07. Will that work for you? Sentence2: I have booked your request, your confirmation number is NWPEWP4X . Sentence3: Yes that will work thank you. Sentence4: Yes, I need to leave after 15:45. Sentence5: Sounds great, and how many nights would you like to stay? Sentence6: There are 10 trains leaving from Cambridge to Ely. Is there a particular departure or arrival time you would prefer? Sentence7: That one sounds fine. I need lodgings beginning Thursday. Sentence8: I'd like 3 nights for 6 people, please. Sentence9: Hope you enjoy your trip! Thanks for allowing us to assist you. Sentence10: How many tickets would you like me to book for train TR5713? Sentence11: Wonderful. Thank you very much! That's everything I needed. Sentence12: The acorn guest house is available in your selected region. It's moderately priced and includes free internet and parking. Sentence13: I am also looking for a hotel in the north please. Sentence14: I'm looking to book a train that goes to ely and leaves on sunday please. Sentence15: Booking was successful for TR5713, the total fee is 10.56 GBP payable at the station. Your reference number is : GGE66KI2 . Is there anything else I can help you with? Sentence16: I need 2 adult and 1 child. Thank you. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output:
Answer: (A) User