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 have made your reservation for 3 at 14:45 on Friday. Your table will be held for 15 minutes. Your reference number is YK1UPI4J . Is there anything you need? Sentence2: Anatolia is a moderately priced Turkish restaurant in the centre of town. They are located at 30 Bridge Street City Centre. Sentence3: Yes, could you book me a room there please? Sentence4: I'm looking for a place to stay. A 0-star hotel is fine with me as long as it fits my moderate budget Sentence5: That sounds perfect. Can you book me a table there for 3 at 14:45 on Friday? Sentence6: I certainly can. When do you want to stay? Sentence7: Thanks! I've also heard great things about a restaurant called Anatolia. What can you tell me about them? Sentence8: I have 2 0-star guesthouses as well as Cityroomz, a 0-star hotel. Cityroomz is in the moderate price range. Would you like a room there? Sentence9: Sure, it's a hotel located on sleeperz hotel, station road. Phone number is 01223304050 Sentence10: Actually, can I have the hotel type, phone number, and address instead? Sentence11: You are welcome! Have a good day! Sentence12: Thank you so much! Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User