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 have train TR3225 that arrives at 10:58 is that good for you? Sentence2: You are all set, your confirmation number is 1Q0G4OWL, can I assist with anything else? Sentence3: Trains begin leaving Kings Lynn at 5:11, may I know your destination please? Sentence4: I need help finding a train out of kings lynn. Sentence5: Thank you! Can you also please recommend a 4-star guesthouse? Sentence6: Is the system back up? Can you make that booking I asked for.? Sentence7: Would day do you want to travel on ? Sentence8: I want to travel on Friday. Sentence9: Sure that sounds great. I need it for 8 people and 5 nights starting on friday. Sentence10: I apologize the system is down please try back later Sentence11: You are booked for train ID TR1958. Your reference number is H8N2SC1Z . The total fee is 78.4 GBP payable at the station. May I help with something else? Sentence12: My destination is Cambridge and I need to be there by 11:30. Sentence13: Yes, I need to book that for 8 people. Can I have the reference number? Sentence14: a and b guesthouse is a nice place, do you want their info ? Sentence15: No that would be it thanks ! Sentence16: You're welcome, I'm glad to have helped! Bye now! Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System