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

Ex Input:
Sentence1: I don't have a preference. Can you recommend one? Sentence2: Thank you that's all the help I need. Goodbye Sentence3: I can work on booking this for you. Sentence4: Sounds great, thanks. I am also looking for a restaurant in the Centre that serves gastropub food. Sentence5: I'm looking to visit a museum in Cambridge. Can you tell me a little about what you have? Sentence6: I would also like to book a taxi to get between the museum and the restaurant. Sentence7: I will make a booking for backstreet bistro,Booking complete here is your reference number T9TB8FBO . Sentence8: I need to arrive at the restaurant by 14:45. I'll need the contact number and car type as well please. Sentence9: Sure. Is there anything else I can assist you with today? Sentence10: It really doesn't matter money is no object. I need a table for 8 on thursday at 14:45. As long as its a gastropub in the centre of town Sentence11: Okay I have booked your taxi. The contact number is 07498867892 and the car is a blue tesla. Sentence12: Cambridge Artworks is a great place and has free entry. Their address and phone number is 5 Greens Road 01223902168. Sentence13: awesome! thanks for all the info Sentence14: There are 23 museums that match that criteria. What area should the museum be in? Sentence15: Okay, there are 3 different restaurants. What is your price range? Sentence16: Thanks for using our service today! Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I have Gonville Hotel in centre area or The Lensfield hotel in the south area. What is your preference? Sentence2: I'm also looking for a hotel to stay in. Preferably a 3 star one. Sentence3: I'm planning to leave on Thursday. Sentence4: Which day are you planning to travel? Sentence5: The Gonville would be great, could you get me the phone number, price range, and postcode? Sentence6: They are in the expensive range, located on gonville place, postal code cb11ly, they are reachable at 01223366611, may I assist with anything else? Sentence7: There are several trains leaving Norwich, what day are you leaving and where are you going? I also need the time you want to leave or arrive. Sentence8: Yes the departure time is 15:16. I booked you for 8 on Train ID TR8040. The Reference number is : 1HY8AJ7Y . Sentence9: No thank you for everything. Sentence10: You are welcome. Have a good evening. Sentence11: I want a train leaving from norwich. Sentence12: As long as you mean a 15:16 departure, I'll take 8 tickets, please. Sentence13: I have a 5:16 departure to Cambridge that arrives at 16:36. Would that do? Sentence14: What area of town would you like? Do you have a price range in mind? Sentence15: I would like to leave after 14:30 and go to Cambridge, please. Sentence16: I don't have a preference for either, but I'd like it to be in the type of hotel. I'll also need free parking. Question: Who has spoken the sentence 15? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I would like to leave Girton College by 06:00 and arrive at the huntingdon marriott hotel. Sentence2: Could you book that for me? I'll need it friday for 2 nights. Sentence3: It's located on girton college, huntingdon road and the phone number is 01223338901 Sentence4: Yes, I can help. Can you tell me where your departure location is and a time frame you were considering? Sentence5: I show two hotels meeting your criteria. the huntingdon marriott hotel and university arms hotel. shall i book one of these for you? Sentence6: I am also looking for a place to go in the same area. Sentence7: Are either of those located in the west and include free parking? Sentence8: I think that's good, give me the address and postcode. Sentence9: I want to find an expensive hotel with a star of 4. Sentence10: Alright then, I'm going to need a taxi to get the two places. Can you hook me up with one? Sentence11: Booking completed! Booked car type : white skoda Contact number : 07702130811 Sentence12: I was able to book one night, reference number is PHX8BZ7N . Sentence13: Your booking was unsuccessful. Would you like to book for a shorter stay? Sentence14: Try just 1 night, then. Sentence15: The huntingdon marriott hotel is in the west and does indeed have free parking. Sentence16: Sure! If you like museums, I would recommend people's portraits exhibition at girton college. Does this sound good or are you thinking of something else? Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:

Answer: (B) System