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: Don't worry, I should be able to help you. Do you know which station you'll be leaving from or going to? Sentence2: What is your destination? Sentence3: Hi, I am trying to plan a trip and need some help with a train. I'm not familiar with trains at all unfortunately. Sentence4: I'm departing from leicester and I need to leave on friday. Thank you for helping! Sentence5: I also need a place to stay. Sentence6: 11 pm and I want it for three people Sentence7: I'm going to Cambridge. Sentence8: We have many great places to stay. What area would you like and do you have a price range? Sentence9: Is there a time you would like to arrive by? Sentence10: TR6539 will arrive by 22:54. Booking was successful, the total fee is 113.4 GBP payable at the station. Your reference number is IE5RK2IG . Do you need anything else? Question: Who has spoken the sentence 2? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: Do you see any museum instead? Can I have the address? Sentence2: That sounds great. Can I also have a taxi leaving at 11:45 from the museum to the hotel? Sentence3: I'd like to suggest alpha-milton guest house. Is there anything else I could help you with? Sentence4: No that's all i need. Thank you very much! Sentence5: Yep there are plenty of it. I would recommend the cambridge and county folk museum, which is located at 2-3 castle street. Sentence6: You're welcome. Have a nice trip. Sentence7: Cool. Can you help me to book a room there for 4 people and 3 nights starting from saturday? Sentence8: I'm also looking for a cinema in the west. Sentence9: Please look for the white tesla. Its contact number is 07418410137. Is there anything else I can do for you? Sentence10: You're all set. The book was successful and the reference number is 20MS14XW . Sentence11: I have eighteen entries that match that. Please specify whether or not parking and free WiFi are of importance to you Sentence12: Sorry, I cannot find any cinema in the west. Sentence13: It doesn't need to include internet. Does that narrow down the options? Sentence14: I'm looking for a moderately priced hotel. Question: Who has spoken the sentence 13? (A) User (B) System


Output: Answer: (B) System