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: Can you tell me the entrance fee? Sentence2: if there ain't none, can you try a nightclub? get postcode, entrance fee, and address Sentence3: I'm sorry, but there are no colleges in the north. Can I try another area/attraction type? Sentence4: Yes, please. There will be 7 of us arriving on Tuesday, and we're staying for 5 nights. Sentence5: The place is a nightclub in the south. Sentence6: It's called the place and it's located at 22 sidney street. The phone number is 01223324600. Sentence7: I'm sorry, the entrance fee is unavailable. You have to see the prices while at the club. Sentence8: I am coming to town and need a hotel in the north. I will be working so need free wifi as well. Sentence9: I also need a place to go in town, i'm thinking a college. Sentence10: You are all set at the Acorn Guest House. Your reference number is B1GC6P8N Sentence11: We have 12 hotels in the north with free wifi. Any other preferences so we can narrow things down for you? Sentence12: Thank you. I will look for the Entrance fees at the door. Sentence13: Anything else I can do for you? Sentence14: The Acorn Guest House fits those criteria, would you like me to book you a room? Sentence15: Are there any colleges in the south? Sentence16: Which nightclub is it? And can you get me the information on it? Sentence17: No, I can manage on my own from here. Sentence18: There are not. Would you like me to search a different area? Sentence19: Ok, thank you for reaching out to Cambridge TownInfo centre. I hope you enjoy your stay! Sentence20: What about a guesthouse that's a moderate price range? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User