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: Great. Can I have the reference number for that reservation? Sentence2: Thank for using our service. Goodbye! Sentence3: Ok, let's book The Lensfield Hotel for you Saturday for 6 people for 4 nights. Sentence4: Thank you so much . Enjoy your stay. Sentence5: I have one hotel and three guesthouses on the southside. Would you like a certain price range or star rating? Sentence6: I've booked you at the Lensfield with reference number is PKEIHXCW . Can I help you with anything else? Sentence7: I need a room, in the south, free wifi. Sentence8: We will. Have a good day. Sentence9: You have been super helpful. Good-Bye. Sentence10: That is all. Thank you Sentence11: Glad I could help. Enjoy your stay. Sentence12: Do you need it to have free parking? Sentence13: The price range and star rating is not important to me. Sentence14: No, you can just pick whatever you would recommend. Can you book a room for 6 people starting on Saturday for 4 nights? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User