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 have found a guestgouse with a cheap price range. Would you like me to book it? Sentence2: I need to stay in the north, 0 stars. Sentence3: The City Centre North B&B is a cheap, 0-star guesthouse in the north. Would you like me to try booking a room there? Sentence4: I have the Archway House that is 4 stars. And is located in the north. Would you like me to try to book that? Sentence5: Unfortunately I could not book that for you. Would you like to try another hotel? Sentence6: Yes please find another hotel. Sentence7: I'm sorry, I misspoke a moment ago. I need a hotel in the cheap range if you can find one. Sentence8: Actually I would prefer a moderate hotel. Sentence9: Thank you for using our service today. Sentence10: I was able to book you for the Worth house which meets all of your criteria, your reference number is RJUMPPNC Sentence11: Yes, please. I need rooms for 3 nights for 4 people beginning Friday. Sentence12: Thank you for your help, that is everything that I need. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System