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: I would like to leave the hotel by 02:45. Sentence2: is one of them free? Sentence3: what time do you want to leave? Sentence4: Neither prices are listed and can vary by season and day, you would have to call them, jesus green can be reached at 01223302579, kings hedges at 01223353248, any preference? Sentence5: I am the floor manager, I apologize, we are training a new crew. I have your taxi booked, look for a black honda, they can be reached at 07639528951. Sentence6: Thank you for using our service. Sentence7: headed to what place? Sentence8: When will you start your stay and for how long? Sentence9: Ashley hotel is nice. It's a moderately priced hotel in the north. The postcode is cb41er. Can I book it for you? Sentence10: where are you leaving from? Sentence11: No particular price range but I would like for it to have free parking internet with a 2 stars. Sentence12: This conversation has gotten a little confused, hasn't it? I'd like to go to Kings Hedges Learner pool, please. Sentence13: i dont have a specific time to arrive Sentence14: It is moderately priced. Sentence15: I am unsure but it does have free wifi and parking. Would you like me to book a reservation for you? Sentence16: Yes, I do need a reservation. Sentence17: Not yet. Do you have a price range for that hotel? Sentence18: OK, what area or price range do you have in mind? Sentence19: North work for me, Ill go with what you pick, just need the price range, hotel type and postal code so I can plan ahead. Sentence20: Does it have a pool? Sentence21: There are two, jesus green outdoor pool and kings hedges learner pool. Sentence22: Thank you that was all I needed goodbye. Sentence23: You have a choice of three, two in the North and one in the west. Sentence24: i need a place to stay Sentence25: i will be leaving from the hotel Sentence26: YES , i could want to book a taxi to commute between the two places. Sentence27: at what time do want to arrive Sentence28: You know what? I think I'm going to hold off on the hotel reservation right now. Is there a swimiming pool near there? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System