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: We have quite a few like that. I could recommend Home From Home, a moderately priced guesthouse in the north. Or are there other factors that matter? Sentence2: Thanks again for your help Sentence3: I'm sorry, there were no rooms available. Perhaps you'd like to find another hotel? Sentence4: If you tell me when you will be staying, how many people and for how many days, I can book you at he home from home? Sentence5: Hi, I'm looking for a place that offers free internet and parking. Sentence6: Yes that's great. Thanks so much! Sentence7: I was able to book a guest house called Acom guest house. It is moderately priced and has internet and parking. Reference number is 0RA8Y7GS . Would that work for you? Sentence8: You're welcome! Have a great day! Sentence9: How about a different hotel in the same price range? Sentence10: Oh, wait, I think I made a mistake, we're actually arriving on Friday, not Sunday. Sentence11: Just free wifi and free parking. Moderate priced and should be a guesthouse please. Sentence12: You're welcome! Have a great day! Sentence13: I was able to book you into Kirkwood house. Your reference number is ANO69RVP . Is there anything else I can help you with? Sentence14: There will be 5 of us staying for 2 nights. We would like to start on Sunday. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System