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: Finches is rated 4 stars. Please provide me with information regarding your reservation and I would be happy to take care of booking the hotel for you. Sentence2: I need the address, type of food, and price range for the Fen Ditton location, please. Sentence3: What is the star rating of the hotel? Sentence4: Okay. No problem. I have corrected that for you. I have booked you into a white Volvo with a contact number of 07064227120. They will pick you up at 22:15. Sentence5: what time do you want to depart from finches? Sentence6: The Pizza Hut is located in Fen Ditton in the Cambridge Retail Park on Newmarket Road. It serves Italian food at a moderate price. Should I book a table for you? Sentence7: There are three Pizza Hut's locations listed: Fen Ditton, City Centre, and Cherry Hinton. Are you interested in one of these? Sentence8: Do both also have free wifi? If so, can you book the guest house. Sentence9: Hi I am planning a trip and need to find a cheap place to stay in the west part of Cambridge. Sentence10: OK, I have a white toyota picking you up at Finches at 22:15 and traveling to the Pizza Hut Fen Ditton. Contact number is 07655072535. Sentence11: It looks like they both do. Do you have a preference for guesthouse or hotel? Sentence12: Absolutely, Finches Bed and Breakfast it is. What day would you like me to book you for? How large is your party? How long is your stay? Sentence13: I'd like to leave by 22:15, please. Sentence14: That's incorrect. I need a taxi that leaves the restaurant by 22:15 and takes me back to the hotel. Sentence15: Okay wonderful. Thanks for all your help. Sentence16: It has been my pleasure. Feel free to contact us with any future concerns. Have a nice day. Sentence17: Which one has free parking? Sentence18: There are two places matching your requests, one a guesthouse and one a hotel. Which do you prefer? Sentence19: I am also looking for a Pizza Hut. Sentence20: I would like a taxi to commute between the two places please. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User