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

Example Input: Sentence1: I'm looking for a nice Italian restaurant. Nothing too expensive...like mid range? Sentence2: Nope, I think that will do it. Thank you so much! Sentence3: Okay, I have booked you at Pizza Express with reference number NK86VOJY . May I help with anything else? Sentence4: I don't care about the area. Could you book a table for 5 at 12:30 on Sunday? Sentence5: I have listing for 5 different ones,can I get what area you are looking for? Sentence6: You are welcome. Have a good day. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Yes, I would like a moderate price range with a 3 star rating. It doesn't need free internet. Sentence2: Yes!, Please find a reservation of a restaurant that serves Turkish food. Sentence3: Can you recheck the same area that has free wifi? Sentence4: Yes please, can i have the reference number? Sentence5: Did you book me at Anatolia Turkish? I need to book for 6 on Thursday at 17:30. Sentence6: I will get that for you now. Sentence7: Sorry I missed it before, I did find a moderately priced guesthouse in the west with Internet. The Hobson house. Shall I make a reservation? Sentence8: It is. On what day will you be checking in, for how many nights, and how many people? Sentence9: I have your booking for the Hobsons House. Your reference number is A4UULB11 . What else can I do for you today? Sentence10: Have a nice day. Sentence11: yes, if it has a three star rating Sentence12: You are booked at the Anatolia. Your reference number is IS9T6H2A . The table will be reserved for 15 minutes. May I help with something else? Sentence13: I have all price ranges and some guesthouses. Any preferences? Sentence14: Great Thanks for all your help. Sentence15: It will be for 6 people for 5 nights starting from Thursday.Can you get me the reference number? Sentence16: I have anatolia turkish located in the centre. It is moderately priced would you like to make reservations? Sentence17: my records shows nome. can we change location? Sentence18: I can go ahead and book that for you now. Sentence19: I'm looking for a restaurant in the same price range as the guesthouse, one that serves corsica food. Sentence20: Once you find the restaurant you want to book a table for the same group of people at 17:30 on the same day. Sentence21: I need a place to stay in the west of town. Sentence22: there is no place they serve corsica food. can you change the cuisine? Question: Who has spoken the sentence 17? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Great, do you have a leave by, or an arrival time in mind? Sentence2: Okay, look for a yellow audi to pick you up. The contact number is 07881400116. May I assist you with anything else? Sentence3: I want to leave by 9:15. I also need to know the car type and contact number. Sentence4: Where will you be departing from? Sentence5: no thats all thanks Sentence6: It has been a pleasure. Have a great day. Sentence7: I'm looking to book a taxi to Pembroke College for this evening. Sentence8: I need to leave from primavera Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System