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: If that is a museum, then yes. Please tell me the entrance fee there. Sentence2: I am looking for Indian food in the cheap price range. Sentence3: You are most welcome, have a wonderful day! Sentence4: Sure. The Kohinoor Restaurant is located at 74 Mill Road. The postcode is cb12as, and the phone number is 01223323639. Sentence5: Thanks, I won't need any further help today. Take care! Sentence6: Primavera is a very popular place. Would you like more information? Sentence7: I'm looking for a restaurant that serves Indian food in the centre of town. Sentence8: Are there any museums nearby? Sentence9: I regret to inform you: there are sports attractions nearby of any kind, sorry. Sentence10: There is no entrance fee for the Primavera and their phone number is 01223357708 Sentence11: I can help you with that. What is your price range? Sentence12: Please tell me about Kohinoor. Provide the phone number, address, and postcode. Sentence13: Thanks. I am also looking for places to go in town, any suggestions? I'd like something of multiple sports in the centre like the restaurant. Sentence14: I have 3 cheap indian restaurants. Kohinoor, The Ghandi, and Mahal of Cambridge. Which can I tell you more about? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User