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: There are many trains available on that day. At what time will you be traveling? Sentence2: Thank you for your time and help, sorry for the confusion. Have a great day ! Sentence3: Hi, can you help me find a train on Monday, please? Sentence4: I will be leaving by 5:15. Sentence5: It should go to leicester Sentence6: Yes, please make a booking for 3 people. Sentence7: That is all. Sentence8: Booking was successful, the total fee is 113.4 GBP payable at the station .Reference number is : 60SBSNJP . Sentence9: TR8631 will leave at 5:21 and arrive by 7:06. Would you like to make a reservation? Sentence10: Can you suggest places to go in town centre? I'm interested in a college. Let me know the entrance fee and the phone number please. Sentence11: sorry, im going from cambridge to leicester Sentence12: Sure, where will you be departing from? Sentence13: Please get me their phone number Sentence14: I have the downing college located at regent street with free entrance fee. Sentence15: Did you mean departing from Leicester and going to Cambridge? We do not have trains from Leicester to Leicester. Sentence16: Thank you. You as well. Sentence17: Have a nice day. Sentence18: I'm departing from leicester. Sentence19: Great. Glad I could be of help. Sentence20: what is your destination? Sentence21: have a great day too. Sentence22: I have several available. How does Christ's college on saint andrew's street with free entrance sound? Their phone number is 01223334900. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User