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: Are there any parks I could visit? Sentence2: Thank you very much, that's all I needed! Sentence3: Great, can you also help me find a place to visit, like a park? Sentence4: Sure, we have many. Are you looking for a certain type of food? Sentence5: The location isn't important, maybe just something near the restaurant. I just need the park's address and I would like to know of any entrance fees. Sentence6: Wadlebury County Park is in the south side of town. It is located at wandlebury ring, gog magog hills, babraham. There is no entrance fee. Sentence7: I made you a reservation for Kymmoy. Your reference number is 1PO9X49Z . Sentence8: I'm looking for a nice expensive restaurant to dine in aat the centre of town. Sentence9: I am not. I do want a table for 5 at 17:30 on Thursday though. Sentence10: There are five parks to choose from. Would you prefer to visit the centre, south, north, or east? Sentence11: You are very welcome! Have a nice day! Sentence12: on what area are you looking for the attraction? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User