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: Price doesn't matter to me, but I'm looking for something in the east part of town. Sentence2: You're welcome and enjoy your visit. Sentence3: Please book that for 6 people staying 3 nights from Monday. Sentence4: I have 7 museums in that area. Some have entrance fees and others are free. Do you have a preference? Sentence5: Great! Thank you so much for your help. Sentence6: I don't need parking. Sentence7: Sure, please tell me the address, phone number, and postcode. Sentence8: I would recommend the A and B Guest House. Sentence9: Is there anything else I can help you with today? Sentence10: Booking was successful.Reference number is : GQ8MEF1L Sentence11: Thank you. I am also looking for museums to visit on the west side of town. Sentence12: I'm looking for a place to stay, can you help me out? Sentence13: That's all I needed thank you! Sentence14: There are a total of 33 guesthouses and hotels in Cambridge. What is your price range? Sentence15: The address is cafe jello gallery, 13 magdalene street, postcode cb30af and the phone number is 01223312112. Sentence16: The Cafe Jello Gallery meets your criteria. Would you like their information? Sentence17: No, not really, thanks. Anything is fine. Sentence18: There are seven hotels that are in the east part of town. Do you need parking? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User