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

Example Input: Sentence1: Are you sure? I'd really like some Austrian food. Sentence2: Yes I am sure. However, I do have a number of restaurants listed as serving European food. Would you like information on these? Sentence3: Thank you, let us know if you need any more help with anything. Sentence4: The phone number is 01223307030. The address is Quayside Off Bridge STreet and the postcode is cb58aq. Can I book a reservation? Sentence5: Yes please. I prefer the centre of town if possible. Sentence6: I would like for that to be cheap as well. Sentence7: No, I'm all set, thanks. Goodbye! Sentence8: Hi, I'm looking for a cheap austrian restaurant. Sentence9: Sounds good. Could you give me the number? Also, the address and postcode. Sentence10: The River Bar Steakhouse and Grill located in the Centre has cheap Modern European food. Would you care for that? Sentence11: There are a number of European options in the town centre. Do you have a price range? Sentence12: I'm sorry but I don't have any Austrian restaurants? Would you like to try a different cuisine? Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: That was helpful! Thank you goodbye. Sentence2: What type of information do you need? Sentence3: I need information to find the huntingdon marriott hotel. Sentence4: You are booked at express by holiday inn cambridge. Reference number: FGSTOTPY . Sentence5: Unfortunately, the booking was unsuccessful. Would you like for me to find another hotel for you? Sentence6: Do you need anything else? Sentence7: I need help finding huntingdon marriott hotel please. Could you book a room for me for 6 people on monday for 5 nights please? Sentence8: I suppose so. Another hotel in the same general price range, if you can. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: sure i have 5 options for you Sentence2: Perfect, thanks so much for your help today, that's everything I needed. Sentence3: I want to find a cheap Italian restaurant. Can you help me out? Sentence4: You are welcome. Have a great day. Sentence5: Okay, pick one for me please. It should be in the west. Sentence6: Your table is booked, reference #YTAMNAAO . Can I help you with anything else today? Sentence7: No thank you. Not at this time. Sentence8: the cambridge belfry has 4 stars and you can call them at 01954714600 Sentence9: I found The Cambridge Belfry, would you like me to book it for you? Sentence10: Hold on. I also need a hotel. Can you help? Something in the same price range and area as the restaurant. Sentence11: You are welcome. If I can be of any other assistance, don't hesitate to ask. Sentence12: Okay, that leaves one option, and that's the La Margherita. Would you like for me to book a reservation for you? Sentence13: Yes, please. Can you reserve a table for 1 on Sunday at 19:30 please? Sentence14: How many stars is it and can you give me the phone number? Question: Who has spoken the sentence 4? (A) User (B) System
Example Output:
Answer: (A) User