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: Could you help me finding some place to eat for dinner? Sentence2: Yes, I also need the postcode, area, and food type for a place called Royal Standard. Sentence3: Not really. Which college would you suggest I visit? Sentence4: No I'm trying to find an attraction near town centre, preferably near a college. Sentence5: Yes. it is 01223334200. anything else i can do for you? Sentence6: Thank you! Have a great day! Sentence7: Of course! Emmanuel College is located on saint andrew's street, postcode cb23ap. May I assist you with anything else? Sentence8: Goodbye. Have a wonderful day and stay. Sentence9: Do you have a food type preference? Sentence10: You're welcome. Do you need any further assistance? Sentence11: I have several places. Is there a specific one you have in mind. Sentence12: Do they have a phone number? Sentence13: Emmanuel College is a great college to visit. It is located at saint andrew's street and the entrance is free. Sentence14: No, I don't need anything else. Goodbye Sentence15: Yes, may I please have the full address with postcode for Emmanuel College? Sentence16: The Royal Standard is a gastropub in the east, the postcode is cb13nl. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System