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: There are 2, both free. They are sheep's green and lammas land park fen causeway, and other is wandlebury country park. Would you like information on either one? Sentence2: There are only 4 boat attractions in town. Camboats in the east. Riverboat georgina is in the north. Scudamores punting company and the cambridge punter are in the centre of town. Sentence3: I'm looking for boats to look at. Can you look in the south? Sentence4: Thanks, could you also book me a taxi between the two locations please? Sentence5: I can arrange a car for you if you'll tell me whether you'll be travelling from the park to the restaurant or vice-versa, and tell me the date and time. Sentence6: Yes, I need to get their phone number and address, please. Sentence7: Could I get the entrance fee for wandlebury country park please? Sentence8: Booking was successful. Expect a grey Lexus. Their number is 07386542982. Anything else? Sentence9: I need to leave the park by 16:15. Sentence10: There are nine places in the south any preference on restaurant type or price range? Sentence11: Are there any boats in the park? Sentence12: The Pizza Hut Cherry Hinton is located in the South and has a moderate price range. Would you like more information? Sentence13: My pleasure. Enjoy your stay. Sentence14: Could you help me find a restaurant in that area? Sentence15: The park is free. There is no entrance fee. Sentence16: Their phone number is 01223323737, and they are located at G4 Cambridge Leisure Park Clifton Way Cherry Hinton. Sentence17: Thank you. Are there any parks in the south? Sentence18: Thank you for all your help. That should be everything today. Sentence19: I'm afraid we don't have any boats in the south. Would you like to try another area? Sentence20: I'd like a moderately priced Italian place. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System