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

Example Input: Sentence1: Howdy, I'm looking for a place to stay. I don't care about internet. Sentence2: I booked you at city centre north b and b. Your reference number is Y87Q565O . Do you need anything else? Sentence3: How about the worth house? It is a 4 star guesthouse and has free internet and free parking. Sentence4: You are so welcome. Enjoy your stay in Cambridge. Sentence5: Would you like me to book it for you? Sentence6: There are 33 hotels in Cambridge. What price range would you like, and what area? Sentence7: Yes and make it for Friday for 2 days, and 2 people. Sentence8: yes I like that one with the free wifi. Sentence9: I would like a cheap hotel in the north please. Sentence10: Thank you so much for your help. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Okay, do you need the taxi to go to the restaurant or the attraction? Sentence2: Okay, perhaps you can find a college that I can visit. Sentence3: Thank you so much. Sentence4: I have 8 results. What area would you like? Sentence5: I want to leave the attraction at 09:45 and head to the restaurant. Sentence6: it is on regent street Sentence7: I'm sorry there are no matches. Sentence8: It should be cheap and include free parking. Sentence9: i also want a taxi to commute between the two places Sentence10: There are 21 guesthouses offering free wifi. Do you have a price range? Sentence11: Sure, you will be expecting a black lexus , their contact number is 07988632177 Sentence12: I recommend finches bed and breakfast, that've got some good reviews. Sentence13: There are five colleges available in the centre area. How about Downing College? The entrance fee is free. Sentence14: Oh thats great. Please assist to book that for 5 nights starting from Saturday and if it fails then Tuesday. Please send me the reference number when you are done. Sentence15: Sounds great. What is the address? Sentence16: Yes, I'm looking for entertainment attractions located in the centre. Sentence17: No particular area. What do you recommend? Sentence18: you are welcome, enjoy yourself. Sentence19: Booking was successful for Saturday. Reference number is : 5LQHD9SU . Can I help with anything else? Sentence20: I'm planning a trip to Cambridge and need a 4 star place with wifi to stay. It doesn't matter if its a hotel or guesthouse, just 4 star please. Question: Who has spoken the sentence 14? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: what is your price range to narrow down our choices? Sentence2: You're very welcome! Bye now! Sentence3: Nothern European food, please Sentence4: You have come to the right place! What kind of food do you like? Sentence5: Ok. How about just european? Any luck there? Sentence6: No, thank you for your help today Sentence7: The reference number is NMEZYUQT . Can I help you with anything else? Sentence8: I will need two tickets. Sentence9: Yes please reserve a spot and give me the reference number after. Sentence10: What is the booking reference number? Sentence11: I recommend TR3343. It leaves Cambridge at 07:00 and arrives in London Kings Cross by 7:51. Will that work for you? I can reserve a spot? Sentence12: I am planning a trip in Cambridge, Looking for a place to dine Sentence13: I have five restaurants that offer european foods, 3 at the center, 1 on west and that other one on the north. Which are do you prefer? Sentence14: How many tickets will you need? Sentence15: I have booked you 2 tickets. Sentence16: Whichever you recommend. Can I have the phone number, postcode, and address, please? Sentence17: I would like to find a expensive one please. Sentence18: I was unable to find any northern european restaurants Sentence19: Okay. I;m looking for a train that departs from cambridge on tuesday and arrives by 08:00 in london kings cross. Sentence20: I recommend the Eraina. The address is on Free School Lane City Centre, cb23rh. The phone number is 01223368786 Question: Who has spoken the sentence 13? (A) User (B) System
Example Output:
Answer: (B) System