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

Positive Example 1 -
Input: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Output: Answer: (A) User

Positive Example 2 -
Input: Sentence1: Guten Tag, I am staying overnight in Cambridge and need a place to sleep. I need free parking and internet. Sentence2: I have 4 different options for you. I have two cheaper guesthouses and two expensive hotels. Do you have a preference? Sentence3: No, but I'd really like to be on the south end of the city. Do any of those fit the bill? Sentence4: Sure. Does price matter? We can narrow it down and find exactly what you need. Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (B) System

Negative Example 1 -
Input: Sentence1: I am looking for a hotel named alyesbray lodge guest house. Sentence2: i have their info, what would you like to know? Sentence3: I would like to book a reservation for it. Can you help me with that? Sentence4: I sure can. First, I will need to know when you want your stay to begin and how many days you'll be staying. Also, how many people will be staying? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (A) User

Negative Example 2 -
Input: Sentence1: Hi there! Can you give me some info on Cityroomz?. Sentence2: Cityroomz is located at Sleeperz Hotel, Station Road in the Centre area. It is a moderatley priced hotel with a 0 star rating. Would you like to book a room? Sentence3: Yes please. I need it for 7 people for 3 nights starting on tuesday. Sentence4: How many days would you like to book it for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User

Now complete the following example -
Input: Sentence1: That is all, thanks for your help. Sentence2: And what is your destination? Sentence3: Okay, there are 8 guesthouse listings fitting your requirements. What pricerange are you looking for, may I ask? Sentence4: i am sorry. i have double checked and still do not find anything matching your criteria. would you like a different star rating? Sentence5: No, the hotel needs to have a 4 star rating. Can you please check your system again? Thanks Sentence6: Your reference number is KWH3J4WG . Can I help with anything else? Sentence7: I can help with that. What kind of price range do you have in mind? Sentence8: No, I will need to keep the days the same. Sentence9: i need a hotel with wifi in the north part of town Sentence10: Great!! Can I get the reference number? Sentence11: Perhaps there is a guestroom? Sentence12: How many tickets will you be needing for the train? Sentence13: Booking was successful, the total fee is 141.6 GBP payable at the station Sentence14: I am not successful with this booking. Do you want to modify the days ? Sentence15: Do you have anything moderately priced? I need it for 6 people, for 3 nights, starting monday. Sentence16: They're all moderately priced. I recommend the Avalon. Sentence17: Just something in the north, 4 star and free wifi? Sentence18: The train should leave after 08:45 and should leave on tuesday. Sentence19: Can you give me what time you want to leave at? There are multiple trains leaving Cambridge. Sentence20: I need to check on a train leaving cambridge. Sentence21: I will need 6 train tickets. Sentence22: Your all set at arbury lodge guesthouse. Your ref number is 593EOJ4K, is there anything else today? Sentence23: You are welcome,have a good day. Sentence24: I am open as far as price range, but I would love a 4 star place. Sentence25: Yes, please. That would be great. Sentence26: No but would you like to try another location ? Sentence27: I will be leaving from cambridge and arrive at leicester on tuesday. Sentence28: There doesn't appear to be a 4 star hotel with wifi in the north. Can I interest you in a lower star rating? Sentence29: The earliest train we have leaving is at 9:00. Would you like me to book that for you? Sentence30: Sounds great. Can you book it and provide me a reference number please? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System