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: You have been super helpful. thanks that's all i need. Sentence2: Please just give me the address, phone number, and area. Sentence3: I have guesthouses in all parts of the city from cheap to moderately priced. Do you have more preferences? Sentence4: Unfortunately I cannot find any multiple sports place in the center. Do you want to try museum maybe? Sentence5: No, I'm also looking for some attractions in town. Any multiple sports attractions located around the centre? Sentence6: you have a wonderful day! Sentence7: Their phone number is 01223446100 and postcode is cb11ly. Do you need anything else? Sentence8: I'd like to find a guesthouse with free parking. Sentence9: Finches bed and breakfast is a guesthouse in the west, it's in the cheap price range with 4 stars. Would you like to reserve a room? Sentence10: I found one. There is the parkside pool in the center. Is there anything else I can help? Sentence11: I can certainly provide you with that. Finches is located in the west at 144 Thornton Road. Their phone number is 01223276653. Can I book you a room? Sentence12: Yes please, I'd like it to be in the cheap price range and I'd also like to stay at a 4 star location. Sentence13: Yes. Can you please give me their phone number and postcode? Sentence14: well, can I try swimming pool maybe? I'm really sporty! Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User