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

Ex Input:
Sentence1: The address for that is 6 trinity street. Sentence2: I don't need to make the reservation now. Thank you though. I would like the address for Cambridge Contemporary Art please. Sentence3: Can you help me find a train coming from cambridge leaving on thursday? Sentence4: How many tickets please? Sentence5: I want to arrive by 21:30 if possible. Sentence6: Yes I have many options. What time would you like to leave or arrive by? Sentence7: Train TR3255 is arriving at 21:06,is that okay for you? Sentence8: Thanks for using our service today, glad I was able to assist you. Hope you have a great day. Sentence9: That could work for me. Sentence10: thank you, that will be all. good bye. Sentence11: I will be going to Leichester. Sentence12: There are 202 trains departing Cambridge on Thursday. Where do you plan to head to that day? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: I'm looking for places to go in town. Maybe a swimming pool? Sentence2: I can help with that. There are 4 swimming pools available; they're in east, north, and centre. Would you like more information? Sentence3: I am unsure of the entrance fee, you will have to call the venue's for prices, would you like the phone numbers? Sentence4: There are two Asian places, would you liked me to book one of them? Sentence5: Thank you for using our service, and enjoy your time in Cambridge! Sentence6: Yes, I would like the phone numbers. I am also looking for a cheap asian restaurant. Sentence7: What are their prices? Sentence8: Yes I have two options: Nusha and Tenpin. Interested in either? Sentence9: I booked a Yellow Skoda, contact number 07937936752. It will pick you up from J Restaurant and bring you to Tenpin. Will that be all today? Sentence10: Sorry, I'm a little confused. Are you looking for information on the attraction Tenpin, or one of the restaurants? Sentence11: The restaurant please. Sentence12: It doesn't matter. Sentence13: Well instead, how about some kind of entertainment in the southern part of the city. Sentence14: The phone numbers are 01223902158 for nusha and 08715501010 for tepin. What area would are you looking for the restaurant in? Sentence15: Thank you can I get the area, postcode, and address of tepin? Sentence16: j restaurant is located at 86 Regent Street City Centre, postcode cb21dp. Sentence17: No, that will be all, thank you. You have been very helpful and also patient. Have a great day. Sentence18: I also need their address and postcodes please Sentence19: What is the entrance fee for those two options? Sentence20: The prices for these restaurants are cheap. Sentence21: The telephone number for the Dojo is 01223363471 and the telephone number for the J restaurant is 01223307581. Sentence22: Great! I'll also need a taxi to go between the two. I'll need to leave the restaurant by 08:00. Question: Who has spoken the sentence 14? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Perfect, I have train TR1472 that meets your criteria, would you like me to book a ticket for you? Sentence2: I can help you with that. Where are you traveling from? Sentence3: Book it for 3 people. Sentence4: Sure. Your train is booked. The fee will be 30.29 GBP and your reference number is 7FGDRE1Q . Sentence5: I need to find a place to stay as well. Can you help? Sentence6: I need to find a train into Cambridge that will arrive by 09:15. Sentence7: I will be leaving the Stansted Airport on Thursday. Sentence8: I need to know what you're looking for first. Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User