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: Sounds interesting! What area is it in? Sentence2: I don't need a booking yet. I do need the postcode, though. Sentence3: Do they have internet? Sentence4: The postcode for the Allenbell is cb13js. Is there anything else I can help you with today? Sentence5: Wait, first let me know: do they have internet access? Sentence6: I am looking for a place to stay. The hotel should have a star of 4 and should include free parking Sentence7: Sure, the Allenbell Guesthouse is located in the east. Can I help with anything else? Sentence8: Sorry. I prefer a guesthouse. Does the Cambridge Belfry meet that requirement? Sentence9: Yes, it should be in the cheap price range. Sentence10: I apologize, it does not. Do you have a specific price range in mind? Sentence11: No, I think that's all I need. Thank you for your help today. Sentence12: You are more than welcome! Sentence13: The allenbell is in the east area. Would you like a reservation? Sentence14: Yes, the allenbell meets all your needs. Shall I book the guesthouse for you? Sentence15: The Cambridge Belfry fits your request. Would you like to book a room? Sentence16: How about allenbell? It looks lovely. Sentence17: Yes, the Allenbell has internet service. Would you like me to book this location for you? Sentence18: Could you also please tell me the area that is in? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System