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

Ex Input:
Sentence1: That is all I need for today. thank you. Goodbye. Sentence2: I have 7 available. The first leaves at 17:32, and arrives at 18:32. Would you like me to book that for you? Sentence3: I'll be departing from Broxbourne and I'd like to go to Cambridge. Sentence4: I'm not looking to book at the moment, can I just get the train ID? Thanks! Sentence5: Okay glad I could help. Enjoy your trip. Sentence6: I'd like to find a train that leaves after 17:00 on Saturday. Sentence7: Of course! TR0811 leaves at 17:32, arrives at 18:32, with a duration of 60 minutes. The price is 14.32 pounds. May I assist you with anything else? Sentence8: Absolutely, I need departure and destination information and a time you need to arrive by. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: yes book for 4 people and 5 nights from sunday Sentence2: I hope you have a great stay. Goodbye. Sentence3: I would prefer a college in town centre. I'll need the phone and address also. Sentence4: I am also looking for a place to stay in the centre. Sentence5: No that will be it thank you for your help. Sentence6: Booking was successful. Reference number is : 7RA903FR . Can I help with anything else today? Sentence7: Ok, there are 13 to choose from. Some have entrance fees. Sentence8: I'm looking for an attraction in the category of college in the center of town Sentence9: I have the cityroomz hotel in the center. Would you like me to make a booking for you? Sentence10: Moderate range please. Sentence11: What price range you would like? Sentence12: Sure thing, Downing college is located at regent street and phone is 01223334860 anything else I can assist with? Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Thank you for using our services. Enjoy your trip. Sentence2: I am looking for a restaurant in the expensive price range. Sentence3: No, that's all I need today. Thanks for your help! Sentence4: Sure thing it's booked, reference is 7QF5EFOW . Is there anything else you need help with today? Sentence5: I have several options for you. Do you prefer a specific type of food, or location? Sentence6: There are 110 different options. Might I suggest Kymmoy? The address is 52 Mill Road City Centre. The phone number is 01223311911. Sentence7: There are many restaurants that match your needs. Do you have any food preferences? Sentence8: Yes, that would definitely work for me. Thanks. Sentence9: I found 11trains, would a 13:11 departure work for you? Sentence10: No preference, just need the address and phone number of the restaurant. Also I am needing a train from Cambridge, nee to leave after 12:15. Sentence11: Would you like me to book that train for you? Sentence12: Yes please, can I get the reference number for 4 people Sentence13: That sounds good, thanks. I also need to get from cambridge to kings lynn on saturday. I can leave anytime after 12:15. Sentence14: I would like something in the center of town, please. Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:

Answer: (A) User