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

Ex Input:
Sentence1: what is your price range for that? Sentence2: you selected attraction can you please correct so I can search. Sentence3: Can you give me the postcode and address please? Sentence4: What is the address for Gonville and Caius College? Sentence5: I'm happy to be of help. Take care. Goodbye. Sentence6: Pizza Express is a moderately priced Italian restaurant in the center of town. Do you need more information? Sentence7: The gonville caius college would be a nice attraction. Could I get the address please? Sentence8: I would recommend gonville and caius college, that is a nice campus in the centre area and best of all, admission is free, would you like more info? Sentence9: I need some information on a place called Pizza express. Sentence10: Thank you. I look forward to the day in town. Goodbye. Sentence11: I don't care about that but I would like the address and area of the college I visit. Sentence12: Yes, I'm looking for colleges to see in town. Can you help me with that? Sentence13: It is located on trinity street. Sentence14: Of course. The postcode is cb21db and it is at Regent Street City Centre. Can I help you with anything else today? Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I have 5 choices for you. If I might suggest the Holy Trinity Church. It has the most unique architecture in our area. They also offer free admission. Sentence2: I will be visiting the centre. Sentence3: Like I mentioned, Holy Trinity Church is totally free. Is there anything else you'll be needing today? Sentence4: Sounds great. Do you happen to know the entrance fee for it? Sentence5: OK I HAVE 1 TRAINS THAT LEAVE AROUND THAT TIMES ONE AT 21:39 WOULD THAT WORK FOR YOU ? Sentence6: I need a train that lease from London Liverpool Street on Tuesday. Sentence7: Yes as long as it leaves AFTER 20:45 that will be fine. How much is it and how long is the travel time? Sentence8: There are 10 days departing London Liverpool Street on Tuesday. Is there a certain time of day you need to travel? Sentence9: No, I don't think so! Thank you for your help! Sentence10: How about architecture type instead? Sentence11: Thank you for using Cambridge TownInfo centre. Please remember us for all of your future travel needs. Sentence12: Which area are you interested in visiting in town? Sentence13: I would like to leave after 20:45. Sentence14: the train ride is 88 minutes and the cost is 16.60 pounds. it leaves at 21:39 and your reference number is Q6UN1GVR . is there anything else i may help you with? Sentence15: There is no entertainment in the centre. Would you be interested in a different type of attraction? Sentence16: I am looking for places to go in town. What type of entertainment is there in the centre? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: I do not, what price ranges are the restaurants in? Sentence2: I have four options for european food. There is our moderate priced restaurants de luca cucina and bar and riverside brasserie. We have an expensive option with darrys cookhouse and wine shop. We also have the river bar steakhouse and grill. I would recommend the riverside brasserie restaurant that is also located in centre. Should I book a reservation for you? Sentence3: Sorry, no results here. Want to try a different food type or area? Sentence4: Can you pick one and just let me know the price range, I'm comfortable with all. Sentence5: Okay, have a good day! Bye! Sentence6: Booking was successful.Reference number is : K15XS51B . is there and other query? Sentence7: Are you sure there are no modern european restaurants in the centre? Sentence8: There are a few. Do you have a price preference? Sentence9: Thanks for taking care of the hotel. I have another request. This time for a restaurant in the same area as the hotel. Sentence10: I have all prices ranges. Sentence11: I show 6 guesthouse and one hotel. Would you like more information? Sentence12: I want somewhere with 3 stars and free wifi. Sentence13: Are there any places serving modern european food? Sentence14: Alright what kind of food would you like today? Sentence15: Yes, please try a hotel in the centre Sentence16: I actually don't need anything else today. Thank you! Bye! Sentence17: Yes, that'd be great. I need it booked for 5 people and for 2 nights starting from sunday. Sentence18: I need help finding a place to stay in the east. Sentence19: I'm sorry there's nothing that matches. Would you like me to try a different area? Sentence20: The Gonville Hotel is an expensive 3 star hotel in the Centre area, I would be happy to book you a reservation if you would like? Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:

Answer: (A) User