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: Let's try the Peking Restaurant, can you make a reservation for us on Monday? Around 13:45 please. Sentence2: There is the Wandlebury Country park. Phone 01223243830. Would you like anything else? Sentence3: Perhaps you could locate a park in the south? Sentence4: Yes. I'm looking for something to do while I'm in town. Sentence5: No that is all I need for today. Sentence6: There are museums, architecture, colleges, theater, cinema, boat tour. Doers anything interest you in particular. Sentence7: Your options are the Good Luck Chinese Food Takeaway, or Peking Restaurant. Sentence8: in the same area as the restaurant? I am interested in architecture please Sentence9: Okay, I've got that taken care of. Your reference number is ECBRMJS2 . Can I help you with anything else? Sentence10: There is no architecture in the south of town Sentence11: Yes certainly but how many people will be dining please? Sentence12: okay sounds good. Sentence13: It appears that they do not have tours. It is a free admission, so you can feel free to go when you please. Can I help with anything else? Sentence14: Could you call and find out what hours they open and close? Also, if they have tours? Sentence15: Okay! What type of cuisine do you want? Chinese, Indian, Italian, and Mexican cuisines are available. Sentence16: I would like a restaurant in the south in the expensive range. Sentence17: It will be 6 people dining. Sentence18: I would like a Chinese restaurant. Question: Who has spoken the sentence 17? (A) User (B) System
Output: 


Answer: (B) System