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 need to know what day you will be arriving and how many nights and how many people will be staying. Sentence2: Sure, which part of town are you interested in? Sentence3: There is also churchill college on the west side. Their postcode is cb30ds. Sentence4: I just need a reference number for the reservation. Sentence5: what dad do i reserve and for how many? Sentence6: No that will be all thank you. Sentence7: Well I have Christ College in the city center and their postcode is cb23bu. Sentence8: Home from Home is a guest house located on Milton Road in the north area. Do you need additional information? Sentence9: I am looking for a college in town Sentence10: You are welcome, enjoy your stay. Sentence11: Do you have any other suggestions? Sentence12: Booking was successful. Reference number is : F9WOFY5C . Anything else I can help with? Sentence13: there will be 3 people and 4 nights from thursday Sentence14: Area does not matter. You pick, just let me know the area and postcode please. Sentence15: Thank you. I also need a hotel called home from home. Sentence16: i don't need any dads reserved. i already have one. Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System