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: I am looking for Indian food. Sentence2: Yes I would. I need it for 3 nights & 3 people starting on Monday. Sentence3: Ok great. Have a wonderful day! Sentence4: Do you have a price range preference? Sentence5: Sure I have Chinese, Indian, Gastropub and British food to name a few. Some expensive. Some moderate. Sentence6: Hi, I am looking forward to trying some of your local restaurants. Can you help me find a place to stay while I am there? Sentence7: Booking was successful. Reference number is : DKE7156L . Is there anything else I can help with? Sentence8: I don't really mind about price, but I would like a 4 star guesthouse with wifi located on the east side. Sentence9: Could you tell me about the restaurants neat the hotel? Sentence10: no price range but I would need the postcode and phone number Sentence11: No thanks, just gethering info for the real boos, my wife. I have no further questions. Sentence12: Do you have a price range? Sentence13: Okay, I recommend Autumn House. Would you like me to make a reservation? Sentence14: The Curry Prince would be a good choice. The postcode is cb58jj. The phone number is 01223566388. Do you need a reservation? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User