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: The price range should be expensive and it should be a hotel. Sentence2: There are 5 hotels that match your request. Was there a specific area you wanted to narrow it down to? We have hotels east, west, south, and in the centre, Sentence3: I will take something in the centre of town. How many stars does that one have? Sentence4: all saints church is found in the jesus lane and entrance fee is free. its postal code is cb58bs Sentence5: We have 44 attractions to choose from. Is there anything specific that you would like to see? Sentence6: Yes those are fine. I also need find an attraction in the centre of town to visit. Sentence7: There are two hotels that meet your request. Gonville Hotel is 3 stars and University Arms Hotel has 4 stars. Would one of these work for you? Sentence8: Anything will do, but I would like the address, entrance fee, and attraction type of whatever you pick. Sentence9: There are 29 places that match your request. Would you have a price range in mind or type of place? Sentence10: I need a place to stay in cambridge that has wifi, and free parking please. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System