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: Before you do, can you tell me how much it will cost? Sentence2: Thats perfect information,thank ytoiuy Sentence3: Nope, that should do it, thanks! Sentence4: The train ride should last about 47 minutes. Anything else I can help you with? Sentence5: Hi, I need help finding out about places to go in East Cambridge. Sentence6: You are very welcome! I hope you enjoy your trip and have a wonderful day! Sentence7: Do you know how long the train ride will take? Sentence8: How about the TR8241 train. It would leave Cambridge at 13:11 and get you to Kings Lynn at 13:58. Sentence9: I'd be happy to help you find a train. Can you tell me where you will be departing from? Sentence10: Yes, I will be leaving Cambridge on Saturday. Sentence11: I'd be happy to help you with that. We have 10 attractions in that area. Is there a specific type of attraction you would like to visit? Sentence12: I don't have a specific attraction, can you suggest one? Sentence13: Yes, I need a train to kings lynn and it should arrive by 14:45 Sentence14: Would you like me to book it? Sentence15: You should definitely check out Cambridge Artworks. It's a museum with free entrance at 5 greens road. Would that work for you? Sentence16: A ticket costs 7.84 pounds. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System