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

Example Input: Sentence1: Not in that criteria, perhaps another area or price range? Sentence2: I'm booking you a table for 5 at 11:00 Saturday at Charlie Chan. What name should I place this under? Sentence3: I want to eat chinese food in the centre. Sentence4: Yes, please try J Restaurant. Asian Oriental food sounds good. Sentence5: I was able to book you into the J restaurant and your reference number is 87G7FWZM . Sentence6: Thank you for your help! That will be all. Good Bye. Sentence7: Booking was unsuccessful. Would you like to find another restaurant? Sentence8: I don't know what I was thinking earlier, we actually have a lot of cheap restaurants in the centre. J Restaurant serves Asian Oriental. Should we try that? Sentence9: How about Charlie Chan? It is a cheap chinese restaurant in the centre. Sentence10: You're welcome, have a great day! Sentence11: Are there any in the same area and price range but not Chinese? Sentence12: Sure. I would like to book a table for 5 people at 11:00 on Saturday. Sentence13: Are there any other cheap restaurants in the area? Sentence14: Book it for XXXX, can I please get a reference number? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: There are five total parks in Cambridge, four of which are free. The University Botanic Gardens cost 4 pounds to enter. Sentence2: Thank you for your help. Sentence3: Please help me find general information about park type places to go in Cambridge. Sentence4: May I please have the phone number, postcode, and area of a free park that you recommend? Sentence5: I have cherry hinton water play,located in the east and the post code is cb18dw. Here is the phone 01223446100. Sentence6: Have a nice day! Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I'm looking for a moderately priced place to stay. Sentence2: A grey Skoda has been booked to pick you up. Their contact number is 07015780256. What else can I do for you? Sentence3: Let's go with a 4 star hotel, I'll need 5 nights for 2 people, starting on Friday. Sentence4: Yes, I am going to need a taxi to go between the two places. I need it to arrive in time for dinner. Sentence5: I would prefer it to be in the north. Sentence6: I would recommend golden wok. shall i book it ? Sentence7: You have eleven choices in the north. Most are guesthouses, two are hotels. Sentence8: You've done it all, thanks so much. Sentence9: I would like to stay in the north part of town. Sentence10: There are 4 moderately priced Chinese restaurants to choose from. Would you prefer to dine in the north or centre? Sentence11: There are 33 moderately priced accommodations. Do you have a specific area or star rating you're looking for? Sentence12: Have a wonderful trip. Sentence13: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 093R1Y1T . Is there anything else I can help you with? Sentence14: Yes, please book friday at 16:00 for 2 people. And tell me the reference number Sentence15: Okay. I booked you at the 4 star Ashley Hotel for 5 nights and your reference number is 67NA9WLR . Sentence16: Thank you. I am also looking for a Chinese restaurant with the same price range as my hotel. Can you help me with that? Question: Who has spoken the sentence 13? (A) User (B) System
Example Output:
Answer: (B) System