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: Sure, what day would you like to book it for? Sentence2: Are there any british restaurants on the west side? Sentence3: Saint Johns Chophouse 21-24 Northampton Street, post code cb30ad. Will there be anything else today? Sentence4: Yes I do, I'd like to leave the restaurant by 04:45. Sentence5: Yes, please, and go to the B&B you booked for me. Sentence6: Okay, a black toyota is booked. You can contact them at 07431558834 Sentence7: Can you book that for 6 ? Sentence8: There are 4 accommodations that fit your criteria. How about Finches Bed and Breakfast? Sentence9: Thank you for contacting us, please don't hesitate to reach out if there's anything else you need in the future. Sentence10: Is that in the moderate price range? Sentence11: I am also looking for a hotel in the same area that offers free wifi. Sentence12: Yes, Saint Johns Chop House is in the moderate price range. Sentence13: For the Westies, saint johns chop house is the place. Need a reservation? Sentence14: Thank you, that was everything that I needed. Sentence15: Booking was successful. Reference number is : G17HAX2C . Will you need a taxi to get between them? Sentence16: Great! I'm not sure when I want to go, so can I just get the address and postcode? Sentence17: Did you want it to pick you up from Saint Johns chop house? Sentence18: I'd like to book 2 nights starting on tuesday Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System