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: Yes. I am looking for a theatre. Sentence2: The phone number is 01223300085. I have a perfect match for you, Hobsons House, located at 96 barton road. Do you need more information or do you want to book now? Sentence3: OK, I can definitely help you out, but I will need some more information from you first! Sentence4: Do you have Hobsons House phone number? Sentence5: Are you looking for an attraction? If so, what type, and where? Sentence6: How about the adc theatre located in the centre area at park street? Would you like more information on this theatre? Sentence7: Sure... the phone number is 01223304906. Would you like me to book this for you? Sentence8: You taxi is booked, its a white bmw and contact number is 07062462058 Sentence9: No thanks. I also need a taxi to commute between the two places. I want to leave the attraction by 03:45. Sentence10: I would like to look into more tourist information. Sentence11: Yes, can I have the phone number? I am also looking for a place to stay in the west, with a moderate price range, free parking, and a star of 3. Sentence12: thank you that will be all goodbye Sentence13: No problem, what would you like to know? Sentence14: Your welcome, have a nice day! Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System