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: You're welcome. I'm here if you have additional questions. Sentence2: The entrance fees for the boat attractions are not available, would you like any more info? Sentence3: Okay I will give them a call. Sentence4: I'm sorry but I have no information on the entrance fee listed. Sentence5: Is there anything else I can assist you with today? Sentence6: I have four attractions involving boats, would you tell me if East, North or centre would be most convenient? Sentence7: I have 5 results for entertainment. Do you have a particular area of town you're looking for entertainment in? Sentence8: Thanks again. Good bye. Sentence9: Great and I'd like to find some entertainment. Sentence10: Any one will do. I would just need to know how much it costs and the address and phone number for it. Sentence11: Well, the phone numbers and addresses of these boat attractions would be helpful. Sentence12: I also need the entrance fee. Sentence13: Oh yes, sorry. I would like to check in on Wednesday for 4 nights and there will be 7 of us. Sentence14: Oh, I don't mind where it is, but I'm thinking I'd like to visit something with boats. Sentence15: Have a good day! Sentence16: I have booked a and b guest house for 4 days for 7 people Reference number is GDH3Z9CI . Sentence17: I can! I would just need the day you be checking in, the length of your stay and the amount of people you are checking in with. Sentence18: Of course. Camboats, on the east side, are located at the Plough, Green End, Fen Ditton. You can call them at 01223902112. Sentence19: I am interested in staying at the A and B Guest House, could you help me book my stay? Sentence20: That is all thank you. Question: Who has spoken the sentence 19? (A) User (B) System
Output: 


Answer: (B) System