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: Hello, I need to find a cheap hotel that has free parking in Cambridge Sentence2: we don't have that information available. Sentence3: I don't care about a particular area, but I would like a guesthouse. Sentence4: Not in the south, I'm afraid. Would you like a different type of attraction? Sentence5: Can you pick one you know is a good place to stay and book it for 7 people staying 4 nights starting Monday? Sentence6: Is there any good attractions in the south, you'd recommend? Sentence7: You're all set at the alexander bed and breakfast. Your reference number is 5X64UYIN . Anything else I can do for you? Sentence8: There are 8 choices, any preference for type? Sentence9: Do you happen to have any colleges to visit? Sentence10: Can I get their entrance fee, as well? Sentence11: Yes, I have found Cineworld Cinema that is in the south area. Their address is cambridge leisure park, clifton way. Is there anything else I can help you with? Sentence12: We have a ton of those! Are you interested in a particular area of town? Sentence13: Yes, I would. Perhaps a theatre or cinema? Sentence14: There are 9 different guesthouses that fit that criteria. What area of the city would you like to stay in? Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System