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: There are two restaurants like you want the Pipasha restaurant and Sitar Tandoori. Do you have a preference as to which one you would like to book? Sentence2: I'm not ready to book yet. Can you give me the postcode for Sitar Tandoori? Sentence3: Hello. I need to get to the airport from my hotel. Sentence4: That's sounds great. Can I have the telephone number? I'm also looking for a place to dine in the expensive price range in the same area, any suggestions? Sentence5: I'd prefer a place that serves Indian food. Sentence6: I would like to book a taxi to take me from Sitar Tandoori to Funky Fun House at 21:30. Can you provide a contact number and the car type? Sentence7: A red lexus will pick you up from sitar tandoori at 21:30. Your contact number is 0735340742. Sentence8: The postal code for Sitar Tandoori is cb19hx. Sentence9: I am looking for places to go in the East side of town. Do you have any suggestions? Sentence10: Thanks! That's all I needed today. Goodbye! Sentence11: The phone number for Funky Fun House is 01223304705. There are 5 expensive restaurants in the East. Do you have a cuisine preference? Sentence12: There are ten different attractions on the east side of town, could I recommend the Funky Fun House entertainment attraction? Sentence13: When do you want to leave? Sentence14: Thank you! Have a nice day! Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System