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: Something in the north, please. Sentence2: Byard Art is located at 14 king's parade. The post code is 01223464646. You can reach them at 01223464646. Sentence3: Ok, I have 17 options for you. What area are you looking for? Sentence4: Are there any in the South? Sentence5: Sure! The postcode and phone number are 01223240089 and 01223240089. Sentence6: Sure, I can help you find one. Is there a certain part of town you were looking to visit? Sentence7: You're welcome! Have a great day. Sentence8: Thanks so much. I am also looking for a museum I could visit. Sentence9: Can I have the phone number, postcode and address please? Sentence10: Great there's the byard art museum there! Sentence11: Wait, I'm staying in the south, that would make more sense. How about a museum in the south? Sentence12: I have two in the south in your price range. One is a 4 star guesthouse and the other is a 3 star guesthouse. Would you like more information? Sentence13: Can you let me know the postcode and phone number of the 4 star guesthouse? Sentence14: I'm sorry. I'm not finding any matching attractions. Would you like to try a different area? Sentence15: I'm looking for a moderately priced hotel that includes free wifi. Sentence16: Awesome, that covers it all. You were very helpful. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User