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: In that case, you absolutely want to stay at the University Arms Hotel. It is in the Centre area. Would you like me to book a room for you? Sentence2: No just give me the address please. Sentence3: Great. Have a nice day. Sentence4: I don't really have a preference. Are there any art museums? Sentence5: Thank you. That is all i needed. Sentence6: Yes. I need a place to stay with free wifi Sentence7: Yes well what price range are you looking for and what area of town do you wish to stay in? Sentence8: it should be in the expensive price range. free parking and should have a star of 4 Sentence9: Cambridge Contemporary Art is a free museum located in the centre area of town. Their number is 01223324222. Do you need anymore information? Sentence10: I have 23 museums to choose from and most have a free entrance. Can you narrow down where you want to go? Sentence11: Yes the address is Regent Street. Sentence12: I'd like some information on places to go in town. I'd like to go to a museum with free admission. Can you make a suggestion? Please provide phone number. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System