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

Example Input: Sentence1: Yes, please. Could you book that for five people as well? Sentence2: The Gonville Hotel is rated 3 stars. There is free internet and parking. It is located at Gonville Place and their phone number is 01223366611. Sentence3: Booking was successful. Reference number is : 5C9C9Y4I . now i can help you book a train Sentence4: Thank you. That is all I need today. Sentence5: I have train TR8860 and leaves at 5:50 and arrives at 6:07. Would you like reservations? Sentence6: My companion and I will arrive on Monday, staying for 5 nights, could you provide me with the reference number? We will need to book a train as well. Sentence7: I would like some information on the gonville hotel Sentence8: Excellent. Could you book it for myself and my partner? Sentence9: Booking was successful, the total fee is 17.6 GBP payable at the station .Reference number is : THCMI67T . Sentence10: enjoy your time with us in Cambridge, enjoy! Sentence11: Sure. Can you confirm when you will be arriving and for how many nights you will be staying? Sentence12: uh why yes you are very perceptive. depart cambridge arrive by 9:45 leaves on sat going to ely Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: You pick the area as I don't have a preference. Sentence2: I found swimmingpools in the areas of east, north and centre. Which would you prefer? Sentence3: I am departing from stevenage on thursday. Sentence4: Parkside Pools is located at Gonville Place. Is there anything else you would like to know? Sentence5: Parkside Pools is a great place located in the centre, would you like more information? Sentence6: Yes please. Get me the address Sentence7: The TR9547 gets into Cambridge from Stevenage at 20:43. Will that work? Sentence8: Have a great day! Sentence9: Yes, I just needed info for now. Thanks for your help. Goodbye. Sentence10: I need a train, on Thursday. Arriving by 2145. Sentence11: Where will you be departing from? Sentence12: i just want a place to go with a swimming pool. Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Thank you for using our system. Good bye Sentence2: I would like a moderately priced restaurant in the west part of town Sentence3: Prezzo is at 21-24 Northampton Road, and can be reached at 01799 521260. Can I be of further assistance? Sentence4: Can I have the address and phone number of the Italian location? Sentence5: That's it. Thank you, goodbye Sentence6: There are three moderately priced restaurants in the west part of town. Do you prefer indian, italian, or british? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output:
Answer: (B) System