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: It does have internet. Would you like to book a room? Sentence2: No, how about chinese food? Sentence3: Okay, can I please have the phone number? Sentence4: Thank you. That's all I needed. I appreciate all of your help. Sentence5: Are there any restaurants serving australasian food in the east part of the city? Sentence6: I'm afraid not. Would you like to try a different part of town? Sentence7: i am also looking for a hotel called limehouse Sentence8: Certainly, the phone number is 01223248882. Is there anything else I can do? Reserve a table for you, perhaps? Sentence9: Yu garden offers chinese food in the east part of town Sentence10: I also need a Taxi that will pick me up by by 8:15 from the guest house to the Restaurant. I will appreciate to have the Car type and the number. Sentence11: Can you tell me if Limehouse has internet access? Sentence12: This is what we've requested for you. You're all set. Sentence13: The Limehouse is a moderately priced 4 star guesthouse located in the North, would you like their contact information and address, or would you like to book a room? Sentence14: Booking completed! Booked car type : white toyota Contact number : 07241514490 Sentence15: I want to leave the restaurant by 8:15. Sentence16: Your Welcome. Have A Great Day! Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System