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 would like to find a cheap restaurant in the centre. Sentence2: What day and time would you like ? Sentence3: The address is The Old Pumping Station, Cheddars Lane. Is there anything else I can help you with today? Sentence4: That was everything I needed, thank you! Sentence5: How about Asian Oriental? Sentence6: I'm glad I could be of assistance. Sentence7: Do you need anymore information? Sentence8: I need to reserve it on Monday at 14:00. There will be 2 people dining. Sentence9: There are quite a few options in that price range and area. What kind of food are you interested in? Sentence10: Sure, thank you! Will you please book a table for 2 people? Sentence11: No, you took care of it all. You were very helpful. Have a great night! Goodbye. Sentence12: Thank you so much. Could you also get me the address for the Cambridge Museum of Technology? Sentence13: Hey I've found dojo noodle bar, how does that sound? Sentence14: Booking was successful. The table will be reserved for 15 minutes. Reference number is : SBH0ATGU . Anything else I can do for you? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System