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

Ex Input:
Sentence1: Goodbye and have a nice day. Sentence2: Little Seoul's address is 108 Regent Street City Centre. Their phone number is 01223 308681. Sentence3: Thank you, goodbye. Sentence4: There are several restaurants located in the centre, which kind of food do you prefer? Sentence5: is there a restaurant in the Centre? Sentence6: Little Seoul serves Korean food in the city's centre. It is expensive but very classy. Would you like to know more about it? Sentence7: I would like one serving korean food, possible. Sentence8: Can I get the address and phone number? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I'll take whichever one you recommend. I just need the phone number, postcode & address please. Sentence2: TR7786 will leave at 17:00, would that work for you? Sentence3: The travel time is 51 minutes. Can I help you with anything else? Sentence4: What time would you like to depart. I have anything from 5:00 to 23:00 Sentence5: Hello, can you help me find a train going to London Kings Cross? Sentence6: You're very welcome! I hope that you enjoy your time here! Thank you for contacting the Cambridge TownInfo centre. Sentence7: There are 3 restaurants that match what you're looking for, would you like me to book one for you? Sentence8: I would recommend the Ghandi. They are located at 72 Regent Street City Centre and can be reached at 01223353942, can I assist with anything else? Sentence9: I think that's everything I need. Thank you very much. Sentence10: Can I get the travel time for that as well? Sentence11: On Monday, from Cambridge. Sentence12: Yes, I apologize but can you give me the arrival time for train TR7786? Sentence13: Yes, please. Is there a restaurant with Indian food? Sentence14: Sure I can. The arrival time for that train is 17:51. Is there anything else I can do for you? Sentence15: I'd like to leave after 15:45, please. Sentence16: I want a cheap swedish restaurant in the centre, please. Sentence17: Sure! What day are you planning on leaving? Sentence18: I wasn't able to find a cheap swedish restaurant in the centre of time. Would you like me to try a different type of food? Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: That will work. Can I get the price and the travel time please? Sentence2: Thank you for the information! I don't need anything else. Sentence3: I have results for 17 chinese restaurants, what area are you looking to dine in? Sentence4: Excellent. Do you want the reference number? Sentence5: Yes you can you book it for 6 people at 12:45 on Friday? Sentence6: Great. enjoy your journey. Sentence7: I would like it be located in the Centre area. I like expensive chinese food. Sentence8: Yes, please. I am also looking for a train. Sentence9: I am going to broxbourne and need to leave cambridge so I arrive by 15:00. Sentence10: I have train TR4334 that departs at 13:01 and arrives by 14:01. Do you think that would work for you? Sentence11: Where will you be going to and from? Sentence12: The travel time will be 60 minutes and the price will be 14.32 pounds. Sentence13: I have 4 different restaurants. If you would like a recommendation, The Ugly Duckling is often known as the best in town. Sentence14: Okay. Can you also tell me what day you want to travel? Sentence15: Yes, I would like to travel on Saturday. Sentence16: I would like to book a meal at a chinese restaurant. Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:

Answer: (A) User