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: Glad I could help. Let us know if you need help in the future. Have a great day!! Sentence2: OK, if you would like me to book a room, I'll need the number of people, the number of nights you're staying, and your arrival day. Sentence3: I want a guesthouse, but don't really care what area it is in. Sentence4: No, thank you for your help. Sentence5: I sure will and you have a great day too. Sentence6: I guess that would be okay Sentence7: I don't need you to book it. Can you just provide me with the address and area. Sentence8: Glad to help! Have a lovely day. Sentence9: I am looking for a cheap hotel with free wifi Sentence10: May I suggest the 4 star, cheap range guesthouse called Finches Bed and Breakfast at 144 Thornton Road, CB30ND. May I make a reservation? Sentence11: Okay, there are 9 cheap guesthouses. Do you prefer it to have free parking? Sentence12: Finches is in the west, at 144 thornton road. Can I help with anything else today? Sentence13: Don't particularly care about parking but if you can narrow it down to just the 4 star ones I would appreciate it. Sentence14: Sure, we have many. Do you have a specific area you want to stay in? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System