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: How about the Alexander bed and breakfast in the centre? It is a cheap 4 star guesthouse with free internet and wifi. Sentence2: That sounds like it might work. Could you check availability for two people this weekend? Sentence3: Does this place include free parking? Sentence4: I am unsure at this time. Sentence5: I am glad to help. Have a nice day. Bye. Sentence6: I live in the centre of town and want to see if I can find a reasonable room for my parents to stay while they are visiting. Sentence7: Okay, would you like some more information about that hotel? Sentence8: You have been very helpful. I have everything I need, thanks. Bye Sentence9: The address is 56 saint barnabas road. Sentence10: What day are they arriving, and how many nights are they staying? Sentence11: The alexander bed and breakfast is a cheap, 4 star guesthouse in the centre area, It has wifi and parking. Does this fit your needs? Sentence12: Can you tell me what the address is? Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: That's all I need for now. thank you very much. Sentence2: Addenbrookes Hospital. The contact number for the paediatric intensive care unit is 01223217715. Sentence3: Can I get the postcode as well? Sentence4: Where's the closest hospital with a paediatric intensive care unit? Sentence5: You are welcome! Have a great day! Sentence6: It looks like the Post Code is CB20QQ. Question: Who has spoken the sentence 5? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: I would like information on the colleges in the centre please. Sentence2: Yes, that would work. I don't need a ticket though. But, can I ask the price per ticket? Sentence3: Yes, thank you very much. That will be all. Sentence4: i'm also interested in places to go in town. Sentence5: I have train TR1144 leaving at 5:36 and arriving at 6:55. Would you like to make reservations for that? Sentence6: What area would you be in? Sentence7: recommend any and give me the entrance fee and postcode Sentence8: Thank you for using our services. Have we met all of your needs? Sentence9: Thank you for calling and have a great day. Goodbye. Sentence10: What day and time do you want to travel? Sentence11: I have 13 results that match, is there anymore information you can give me on what you are looking for? Sentence12: Thanks, that's all I need for today Sentence13: Good evening, I need to take a train from Cambridge to Norwich. Sentence14: I want to leave on Wednesday and arrive by 15:30. Sentence15: gonville and caius college have free admission. Their postcode is cb21ta Sentence16: The price is 17.60. Can I help you with anything else? Question: Who has spoken the sentence 1? (A) User (B) System


Output: Answer: (B) System