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: The booking was successful, and your reference number is 0OGAX9RA . Sentence2: curry prince is a nice place. Do you want to book ? Sentence3: 2 people will be staying. Can you give me the reference number too? Sentence4: That sounds perfect. I need that for 5 nights. Sentence5: Thanks, that's all I needed today. Goodbye! Sentence6: I found 3 that match that criteria. I would recommend the Carolina Bed and Breakfast which is four stars. Would you like a reservation? Sentence7: Okay. Can you tell me what day you'll be arriving? Sentence8: Booking was successful. The table will be reserved for 15 minutes.Reference number is : LDY1DUF0 . Sentence9: I really would like to try some Indian food while in town so please find me a restaurant that serves it on the East side Sentence10: Yeah. I'd like a table for 2 people on tuesday at 13:45. Sentence11: I'd like reservations for Tuesday. Sentence12: There are 33 options for lodging in town. Do you have a preference for type, area, pricerange, or star rating? Sentence13: I would also like to get a place to stay too. Sentence14: How many people will be staying? Sentence15: Okay, you are welcome! Have a good stay! Sentence16: Same area as the restaurant, moderate price range, and it doesn't have to have free parking. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User