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!! Several, like the cambridge corn exchange. Is there a particular area you are interested in? Sentence2: I would consider a museum. Are there any in the east? Sentence3: Lol. Okay how about the gallery at twelve a high street then? Sentence4: Are there any theaters that I can go to while I'm visiting Cambridge? Sentence5: There are a few trains to that place. Where will you be departing from? Sentence6: it's just listed as a museum but i would assume they have art there. anything else today? Sentence7: Yes a theatre in the east is what I am looking for. Sentence8: i don't want that museum, i hate technology. i want to destroy this computer i'm using. Sentence9: Yes I have 4, does a entrance fee matter to you? Sentence10: The train nnumber is TR7310 and leaves at 5:06 Sentence11: I need a train to Peterborough on Saturday. Sentence12: I need the get postcode and phone number. Sentence13: The train should leave on saturday and should depart from cambridge. Sentence14: is it an art gallery? i also hate art. i'm a curmudgeon. Sentence15: A museum wasnt picked, but i would recommend the cambridge museum of technology, the postal code is cb58ld and the number is 01223368650, may I help with anything else. Sentence16: Unfortunately there aren't any theatres in that area. Would a different area work for you? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User