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

Ex Input:
Sentence1: Which one includes free parking? I don't need internet included. Sentence2: Does Finches Bed and Breakfast have free wifi? Since they both have free parking, I might as well go with the cheaper price. Sentence3: Both of them have free parking. Sentence4: Certainly! What time of day would you like to travel, and what are your departure and arrival locations? Sentence5: Good news! Booking was successful. Reference number is : G3504UR7 . Sentence6: Yes that would be perfect! Can I please get it for 3 people, 4 nights and We'll be there by Wednesday Sentence7: That train leaves at 11:11. Travel time is 47 minutes. Sentence8: There are two guesthouses on the west side: Finches Bed and Breakfast, with a cheap price point, and Hobsons House, with a moderate price point. Would you be interested in either of these? Sentence9: Thank you very much for your help. Sentence10: No, I just need the departure time. How long of a trip is it? Sentence11: I need to book a guesthouse in the west of cambridge, are there any? Sentence12: Yes, they have internet as well. Would you like to book this room for you? Sentence13: If you need help with anything else, please don't hesitate to contact us. Enjoy your travels. Sentence14: Will be leaving Cambridge & going to Kings Lynn. Wanted to arrive by 12:00. Sentence15: Sure, TR8704 arrives at 11:58, can I book a seat for you? Sentence16: Fantastic, I'd also like a train leaving on Sunday, please. Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Thanks for using our services. Sentence2: I would prefer moderate price range. Sentence3: Got everything. Thanks. Goodbye. Sentence4: The restaurant is called meghna. The postcode is cb43lf, the address is 205 Victoria Road Chesterton. Anything else? Sentence5: Are there any Indian restaurants there? Sentence6: no, I just need to know the postcode. Sentence7: WHich price range do you want? I have expensive and moderate. Sentence8: Yes, there are 22. What area would you like to dine in? Sentence9: I want to dine in the west. Sentence10: I have found one, Can I make a booking for you? Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Do you have anything in the east? Sentence2: OK, I'm all set here. Thanks for your help. Sentence3: You can change any other criteria, but the price range should be the same as the city centre north b and b. Please try again. Sentence4: Unfortunately the booking was unsuccessful, would you like to try another hotel? Sentence5: The city centre north b and b meets your criteria. Do you want to make a reservation? Sentence6: Nothing else is available on the cheap side. Something else perhaps? I am sorry. Sentence7: Booking was successful at worth house. Reference number is : E2KQ4G5L . Sentence8: The address is 152 chesterton road. Sentence9: There is nothing in the east with zero stars and free parking. Do you want to change the star rating or other criteria? Sentence10: Yes, I have two guesthouses that fit that criteria. Would you like to stay in the north or centre? Sentence11: Yes, I would like to make a reservation on Saturday for 6 people and we will be staying for 2 nights. Sentence12: Yes i would like something in the same pricerange. Sentence13: No can you please check in the north instead then? Sentence14: That's great. Thanks. Do you have their address? Sentence15: Hello! I'm looking for a place to stay with free parking and zero stars. Sentence16: Enjoy your stay at the worth house. Have a great day. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:

Answer: (B) System