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: Absolutely, the address for the Funky Fun House is 8 Mercers Row located in the Mercers Row Industrial Estate. Sentence2: Great, thank you. Can you also help me find a place to stay? I'd like an expensive hotel with free parking. Sentence3: I am looking for a particular attraction called the Funky Fun House. Can you get me directions? Sentence4: Can you tell me what the entrance fee is? May i also have their postcode please? Sentence5: Could you book it for 3 people and for 3 nights starting on sunday? Sentence6: Thank you! I'm all set. Goodbye! Sentence7: Okay, the booking was successful. Your reference number is : 3EJ2CUS3 . Sentence8: The Funky Fun House is in the east past of town. Is there anything else I can help you with? Sentence9: You're welcome. Enjoy your visit! Sentence10: Express by Holiday Inn Cambridge is an expensive hotel in the east end. Would you like me to book it for you? Sentence11: What area of town is that in? Sentence12: I would like a hotel in the expensive price range. Sentence13: I'm sorry, there's no entrance fee information listed for that attraction. The postcode is cb58hy. Sentence14: Sure, there are 5 hotels. How many stars should the hotel have? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User