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: You are welcome. It has been a pleasure assisting you today. Have a wonderful day. Sentence2: Yes. Please book for 1 person. Sentence3: Nusha : unit g6, cambridge leisure park, clifton road cb17dy , phone: 01223902158. Tempin : cambridge leisure park, clifton way cb17dy 08715501010 Sentence4: Well, what area do you recommend for entertainment? Sentence5: Booking was successful, the total fee is 10.1 GBP payable at the station . Reference number is : 5P72XENH . Sentence6: TR7012 departs the airport at 16:24 and arrives in Cambridge by 16:52. Would this work for you? Sentence7: I am not showing anything in the Centre, is there another area you would like to try? Sentence8: Great, thanks! Can you also recommend something fun to do in town? Sentence9: There are several trains leaving from stansted airport on thursday, is there a specific time you would prefer to leave? Sentence10: Sure, could I have the address and phone number for both? Sentence11: How about in the South part? There are two venues, Nusha and Tenpin. Would you like information about one of those? Sentence12: What area do you recommend for entertainment? Sentence13: Thank you for the entertainment information in the south. That's it. You've been helpful. Goodbye. Sentence14: I want to book a train from stansted airport on thursday. Sentence15: What side of town? Sentence16: I need it to arrive by 17:15 and go to Cambridge Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System