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: Of course. My computer doesn't tell me what the entrance fee is. The address is The Plugh, Green End, Fen Ditton. Is there anything else I can assist you with? Sentence2: That is it. Thank you so much for your help. Sentence3: Most definitely! We have a wide-range of hotels that offer free wifi and parking. Do you prefer a particular a particular area in Cambridge? Sentence4: I want to start my stay on Sunday for 7 people, 4 nights. Sentence5: Camboats is the one choice for boat attractions in the east. Can I do anything else today? Sentence6: There are no colleges in that area. Should I look in another area? Sentence7: Can you recommend a tour of the college near the hotel? Sentence8: You are very welcome! Enjoy your visit! Sentence9: We are visiting cambridge for the first time and looking for a moderately priced place to stay for 5 nights that includes free parking. Any suggestions? Sentence10: Could you give me the address and entrance fee? Sentence11: What day will you be coming in and how long will you be staying? Sentence12: Why don't you search for a boat attraction instead please Sentence13: Booking was successful. Reference number is : 42Z3RMYG . Sentence14: We have two places to pick from, I recommend the warkworth house, shall I book you? Sentence15: Sure I need rooms for 7 people Sentence16: I think I want somewhere in the east Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System