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: When would you like to leave the restaurant or arrive at the college? Sentence2: Just to avoid any confusion on my part you were looking for a college or a museum? I may have pulled up the wrong information. I apologize for that. Sentence3: I apologize, there's been a misunderstanding. Before we can book your taxi, we need to know which college. There are 18 colleges. What area are you looking for? Sentence4: Great! May I have their contact number? Sentence5: That is wonderful. Thank you so much for being patient. I am all set. Bye. Sentence6: We have tandoor palace, cocum, rice boat, maharajah tandoor restaurant, and india house, which would you like to try? Sentence7: Would you like me to book you a table at maharajah tandoori restaurant? Sentence8: Yes, a table for 2 people on friday at 12:00. I need a reference number. Sentence9: Would you like to arrive at the restaurant or at the college by 12:00? I'm afraid there has been a misunderstanding. Sentence10: I'm looking for an expensive place to eat in the west area of town. Sentence11: The restaurant please. Sentence12: I would like to leave maharajah taondoori, and go to a college. Sentence13: The Maharajah Tandoor sounds great! Sentence14: I apologize for the confusion. I have 5 different museums. 3 are free and the other two charge 2.50 pounds. All are in the west. Which do you prefer? Sentence15: Yes please, to be precise and clear up prior misunderstandings, I need a taxi at 11.45 from Churchill College to Maharajah Tandoor so I can get there by 12. Sentence16: to the attraction Sentence17: I want to arrive at the restaurant by 12:00 on Friday please. I will also need their contact number and the car type. Sentence18: Thank you, goodbye. Sentence19: The contact number for Churchill College is 01223336233. Are you ready to book that taxi now that we know which college you are wanting to travel to? Sentence20: I would prefer a free one, just surprise me with information on one of them please. Sentence21: Indian sound good. Sentence22: There are nine expensive restaurants on the west side of town. Did you have a specific cuisine in mind? Sentence23: All right, a table for 2 is reserved for you. M4TC7VRV is your reference number. Sentence24: Yes, we've booked a taxi for you: A red volvo, contact number 07272851306. Sentence25: I am also going to need a taxi to get me to the restaurant before my reservation. Can you get me their contact number and car type? Sentence26: I would be happy to book you a taxi. Could you please tell me where you would like to depart from? Sentence27: A college and I need their telephone number. Sentence28: Where would you like the taxi to take you? Sentence29: I'm sorry, let's back up. We'll worry about the taxi later. First, can you help me find a college on the west side of town? Sentence30: Certainly Churchill College is free to enter and their address is storey's way. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User