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: No, but it should have free wifi, 4 stars, and free parking. Sentence2: Certainly, is there an area of town you prefer? Sentence3: The Place is a nightclub in the south part of town. I'm sorry, i do not have the entrance fee. Their phone number is 01223324600. Is there anything else? Sentence4: No. You can pick the hotel. I will need it for 3 people lasting 2 nights, from Friday. Sentence5: No, that's all I needed! Thanks you've been so helpful! Bye! Sentence6: Yes, I need the reference number. Sentence7: What is the entrance fee and the phone number for the one in the south? Sentence8: There are quite a few options that match your needs -would you prefer cheap or moderately priced? Sentence9: You are most welcome. Enjoy your visit! Sentence10: I am looking for a place to stay with 4 stars. Sentence11: Booking was successful. Reference number is : UUJ3X14V . Sentence12: I have booked you a room at the Acorn Guest House. They are at 154 Chesterson Road, CB41DA. Their phone number is 01223353888. Can I help you with anything else? Sentence13: I have 6 night clubs in the city, 5 are in the centre and 1 is in the South? Would you like info on any of them? Sentence14: Thanks! I am also looking for suggestions for night clubs. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System