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 see there is a train on Friday that leaves leicester at 14:09 to Cambridge, could you book me a ticket for this train? Sentence2: I have 9 restaurants in that area. May I ask what your budget for lunch is? Sentence3: I have a 12:09 that arrives at 13:54. Would that do for you? Sentence4: The duration of the trip is 105 minutes. Have a great day! Sentence5: Yes, the gandhi is in the cheap price range. Their address is 72 Regent Street City Centre. Would you like me to book a table for you? Sentence6: Hi there, I'm trying to find a train that leaves from Leicester but it must be after 11:15. Can you help me book a ticket? Sentence7: I just need the train ID please. Sentence8: There are three cheap resturants int hat area, kohinoor, the gandhi, and mahal of cambridge. Sentence9: I think that is all for now. Sentence10: Did you only need one ticket? Sentence11: The train ID is TR6247, would you like to book a seat? Sentence12: The train ID is TR8882. Can I help you with anything else? Sentence13: No thank you, their information is enough at this time. Do they have a phone number? Sentence14: The Ghandi sounds nice. Can I get their address? And they are a cheap restaurant, right? Sentence15: Please book me a ticket for that train. Sentence16: Yes, their phone number is 01223353942. Is there anything else I can help you with today? Sentence17: Yes, that would be fine. Could I get the train ID? Sentence18: I need a train from leicester on thursday and should leave after 11:15. Sentence19: No thank you. That's not necessary. Can you help me find an indian restaurant in the centre of town? Sentence20: Nothing expensive please. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User