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'm not so concerned about the area, but I'm looking for something cheap. I won't need to use parking. Sentence2: I am sorry there are none located in the centre. Something else perhaps? Sentence3: I'm sorry, our signals may have gotten crossed. What would you like to know the entrance fee, address, and phone number for? Sentence4: Does it include free wifi? Sentence5: What about something moderately priced that's in the centre instead? Sentence6: Is there another one that is in the cheap price range that includes free wifi? Sentence7: That's great can you give me the phone number, postcode and address for Alexander Bed and Breakfast? Sentence8: I am sorry. That was my mistake. I h ave all the information I need, thank you. Sentence9: Is there anything else that you might need? Sentence10: Im looking for a place to eat eritrean food at the centre. Sentence11: Restaurant one seven is a good one. Would you like to book it? Sentence12: Ok Thank you and have a great day. Sentence13: British food sounds good. What options do I have? Sentence14: Phone is, 01223337766. Adress starting with post code is,cb21ab De Vere University Arms Regent Street City Centre Sentence15: My apologies. Actually, Alexander Bed and Breakfast does include free wifi. I have confirmed that information. Sentence16: I also need a place to stay. Sentence17: I'm sorry, after searching I was unable to acquire any information about the hotel and weather it has wifi. Sentence18: I am not quite ready to book a table, but may I have the address of the restaurant including the postcode and the phone number? Sentence19: Sure, it's at 56 saint Barnabas road, Cb12de. The phone number is 01223525725. Would you like me to book you a room? Sentence20: Nah, that won't be necessary. Sentence21: entrance fee, address, and phone number Sentence22: I'd be happy to help you acquire lodgings. What part of the city would you like to stay in, and what amenities do you prefer? Sentence23: Alright, I have Alexander Bed & Breakfast already in centre, very affordable and 4 stars. Does that interest you? Sentence24: OK, there are a lot of moderately priced restaurants in the centre. How do you feel about british food? Question: Who has spoken the sentence 20? (A) User (B) System
Output: 


Answer: (A) User