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: The Varsity Restaurant is your best bet. Would you like a table there? Sentence2: It sure is. May i book it for you? Sentence3: It is a country park? Would you like to find anything else today? Sentence4: No thank you, that was everything that I needed help with. Thank you very much for helping me. Sentence5: Is that in the moderate price range? Sentence6: I'm looking for Milton Country Park. Can you tell me about it? Sentence7: Could I please have the contact number and car type for the taxi? Sentence8: Can you book me a taxi between the two places? I want to get to the attraction by 20:45. Sentence9: Your taxi has been booked. Is there anything else I may help you with today? Sentence10: Of course, it's a park located in the north area of town and has no entrance fee. The phone number there is 01223420060 Sentence11: Yes. The contact number is 07874698505 and the car type is a Grey Skoda. Can I help with anything else? Sentence12: Have a great day! Sentence13: What kind of attraction is it? Sentence14: I am also looking for a restaurant that serves international food and located in the centre of town. Sentence15: The address for the Varsity Restaurant is 35 Saint Andrews Street City Centre, cb23ar. The phone number is 01223356060. Can I help you with anything else? Sentence16: No thank you but I would like the full address and phone number please. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User