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, how much is the entrance fee and can I get their number as well? Sentence2: Do you have one in the centre area. That would be nice. Sentence3: Sure, City Centre North B & B is a guesthouse on the north side, fairly cheap with 0 stars. Would you like to make a booking there? Sentence4: We hope you have a great time. Sentence5: Great I am also looking for some info on a hotel called city centre north b and b Sentence6: The address of the hotel is at 328a histon road and its postal code is cb43ht. Sentence7: There are four public pools in Cambridge. Are you looking for one in a specific area? Sentence8: No that is everything I needed. Take care. Thanks! Sentence9: Of course, I'd be happy to provide that information. Unfortunately our system does not have information about their entrance fee, but their phone number is 01223446100 so you can ask directly. Sentence10: I have a taxi, a blue volkswagen, set to pick you up from parkside pools at 22:30. Your contact number is 07804944337. Is there anything else? Sentence11: Thank you but I would just like the address of the hotel for now. I will also need a taxi to be booked, though. Sentence12: Yes, we have 1 pool in the centre named parkside pools. Would you like more information about it? Sentence13: I also need a taxi to pick me up from the attraction by 22:30 Sentence14: I am trying to find a public swimming pool. Do you know of any? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User