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

Example Input: Sentence1: Sure, what will your arrival station be? Sentence2: Thank you! What kinds of restaurants are available? Sentence3: Yes, please. For Friday. 3 people at 16:30. Sentence4: Oh thank you so much. I also need a train from Bishops Stortford, can you help with that? Sentence5: Your welcome, Have a nice day. Sentence6: sure, i have 9 options for you Sentence7: Sure. The Graffiti is a restaurant that serves British food. The phone number is 01223277977. Would you like to make a booking? Sentence8: It is a total time of 38 minutes for the trip. Anything else that I can assist with? Sentence9: The departure time is 09:29. Is there anything else that I can help you with today? Sentence10: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 86G11ZVP . Sentence11: I will be heading into Cambridge. I will need it for Friday arriving by 12:00. Sentence12: Are there any expensive places to dine in the West? Sentence13: No that's ok. I just need the travel time. Sentence14: TR2083 will arrive at 10:07. Want to book? Sentence15: Nothing else today. Thanks so much for your help. Bye. Sentence16: Yeah, can you confirm the time I need to be at the station? Sentence17: I see british, european, and indian available. Sentence18: Can you tell me about one of the restaurants that serves British cuisine? Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: book a table for 6 people at 12:00 on wednesday Sentence2: Are you looking for one in a particular area? Sentence3: I'm looking for parks in Cambridge can you help me? Sentence4: No, area doesn't matter. What park would you recommend? Sentence5: Thank you that is all I need for now. Sentence6: Okay great! I hope you have a wonderful day! Sentence7: Tandoori Palace in the west is a wonderful Indian restaurant. Would you like their phone number or a reservation there, perhaps? Sentence8: I was able to book a table for 6 they will hold the table for you for 15 minutes. The reference number is M4ILDKD4 . Sentence9: The postcode is cb18dw. Sentence10: There are fifteen Italian restaurants in town. Do you want a specific part of town, or maybe a certain price range to narrow down the search? Sentence11: I need help finding a book on italian food Sentence12: No just the postcode please. Sentence13: Thanks. Could you help me find and expensive Indian restaurant perhaps? Sentence14: Cherry Hinton Water Play park in the east is an excellent place to keep cool on hot summer days. Would you like the address? Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I have 3 hotels that fit your criteria. Would you like one located in the north or the east? Sentence2: I would like to find a French restaurant, please. Sentence3: Great, I'm glad I could assist. Enjoy your trip, have a good day! Sentence4: Well then, I would recommend the Ashley hotel. Would you like me to book a room for you? Sentence5: If it's moderately priced, yes please. Sentence6: There are four moderately priced Indian restaurants. Two are in the east. Would you like me to make a reservation for either Curry Prince or Rajmahal? Sentence7: You can try cote in the centre. Need a reservation? Sentence8: Okay I've booked you at Curry Place. Your reference number is Reference number is : EP4ZPSL2 . Do you need anything else? Sentence9: Yes, The hotel should include free wifi and doesn't need to have free parking. Sentence10: I do not have a moderate priced French place. Do you have another kind in mind? Sentence11: Hmm. How about Indian instead? Sentence12: I am looking for a 2 star hotel with free wifi. Sentence13: Yes, please book me for 2 people at 14:30 on Monday. Sentence14: I also need to find a place to stay while I am in town. Sentence15: How many stars do you want. Sentence16: book it for the same group of people and 4 nights starting from the same day. Sentence17: thank you. you took care of all my needs. thanks. bye. Sentence18: Your room has been booked. Your reference number is PWWHLH5V . Question: Who has spoken the sentence 11? (A) User (B) System
Example Output:
Answer: (B) System