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: Sorry, I actually wanted somewhere in the west Sentence2: Thank you for your help, that is all I need today. Sentence3: I would also like to find somewhere fun in the middle of town to go. Sentence4: Sure, please provide me with the postcode and address Sentence5: The booking was successful for sunday. The reference number is LPVGJVZ0 . May I assist you with anything else today? Sentence6: The gandhi is location in the centre and is cheaply priced. The address is 72 Regent Street City centre. Would you like any other information? Sentence7: I'm looking for a restaurant called the gandhi. Sentence8: Whale of a time is a fun-filled, entertainment-type of attraction in the west. Do you want more information? Sentence9: The address is unit 8, viking way, bar hill and the post code is cb238el. Sentence10: There are over 40 attractions in city centre - lots to choose from. Do you have a type of attraction in mind? Sentence11: Great, thanks for using Cambridge TownInfo centre. Have a wonderful day! Sentence12: Can you book it for 8 people on Sunday at 14:45? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System