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

Input: Consider Input: Sentence1: I think you'd like TR8842 train, it costs 23.60 pounds. Sentence2: Thanks, it would be helpful if you also told me what time TR8842 leaves. Anyhow, I just got paid. Can you find me a high-end eatery serving European cuisine? Sentence3: No thank you. I'll just need the address for an expensive restaurant that serves European food. Sentence4: Train TR8842 leaves london kings cross at 15:17 on friday and arrives at cambridge at 16:08. Can I provide you more information or book it for you? Sentence5: Arrival time is not important. I just need to leave after 14:15. I will need the train ID and the price, please. Sentence6: Sorry! As I said, it's at Free School Lane City Centre. Can I help you with anything else? Sentence7: Hi, could you help me find a train going to Cambridge? Sentence8: Is there a time you would like to arrive by? Sentence9: Where and when are you departing from? Sentence10: I would like to leave on Friday Sentence11: No, that's it. Thank you. Sentence12: which side of town is most appropriate for you? Sentence13: Have a lovely day, goodbye. Sentence14: I am leaving from London Kings Cross after 14:15. Sentence15: I'm sorry, but I think you gave me the phone number. I need the address, please. Sentence16: I don't have a preference really, please recommend one. Sentence17: no. i just need the address Sentence18: What day would you like to leave? Sentence19: its address is 01223368786. is that it? Sentence20: How about the eraina located at Free School Lane City Centre. Would you like reservations? Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: I need a place to stay with free wifi. Sentence2: Location doesn't really matter as long as there's free parking available. Sentence3: Ok, I have several hotels. Any particular location? Sentence4: How about the Gonville Hotel located in the centre area of town? Sentence5: What is their postcode? Sentence6: Their postcode is cb11Iy, address gonville place, phone 0122336661 they have wifi and free parking too. Would you like me to book this for you? Sentence7: I have several available. What is your price range? Sentence8: Between $100-$300 per night. Question: Who has spoken the sentence 2? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: I can help you with that. Where are you leaving from and going to? Sentence2: There are 15 restaurants in the city centre that are in the cheap price range. What type of cuisine would you prefer? Sentence3: Great! Enjoy your visit and have a good one. Sentence4: That doesn't matter. The 18:16 will do. Book it for 4. Sentence5: Thank you so much for your help, that's all I need today. Sentence6: I'm looking for a restaurant in the center, but on the cheaper price range, can you help me? Sentence7: Actually, no booking is necessary. But, can you suggest one and provide me the address. Thanks. Sentence8: I'm leaving from Norwich and heading for Cambridge. Sentence9: Your ticket booking was successful and the total fee is 70.4 GBP payable at the station . Your reference number is : 72SA1578 . Is there anything else I can help you with? Sentence10: Trains leave hourly from 5:16 am till 18:16 pm. The 18:16 pm train arrives at 19:35. The fare is 17.60. What time would you like to leave? Sentence11: Great thank you, I also need a train to arrive by 20:15 and traveling on monday. Sentence12: I recommend the golden house. The address is 12 Lensfield Road City Centre. Sentence13: I have three. Shall I try to book one? Sentence14: I will prefer restaurant that serve Chinese food. Question: Who has spoken the sentence 6? (A) User (B) System


Output: Answer: (A) User