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: Thank you. I also need information on a train to Leicester on Thursday. Sentence2: OKay I am glad I could assist. Sentence3: I need to arrive by 20:00 please. Sentence4: and from where will you be departing? Sentence5: What information are you looking for? Sentence6: The TR3564 will get you there by 19:06. Would you like for me to book it? Sentence7: I have several options, what is your timeframe like? Sentence8: The reservations have been made and the reference number is F82V85K4 . and the total fee is 226.8 GBP. Sentence9: Unfortunately there are no multiple sport type attractions in the centre of town? Would you like info on another attraction or in another area? Sentence10: No thanks! That's it for now. Sentence11: I am looking for information in Cambridge Sentence12: I will be leaving from Cambridge. Sentence13: Goodbye and thanks. Have a great day. Sentence14: I recommend the Mumford Theatre. They are located at Anglia Ruskin Enterprise, East Road. Their phone number is 08451962320. Sentence15: Yes, please. I need 6 tickets. Sentence16: I need some places to go. Maybe some place in the centre are of the town. Multiple sports type? Sentence17: Can we try to find a theatre? I'll need the phone number, please? Sentence18: welcome anytime you need us Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System