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: On Saturday, please. Sentence2: The place to go is the man on the moon. Need a phone number? Sentence3: The address is 2 norfolk street. Sentence4: i'm also trying to catch a train on saturday. Sentence5: I am still waiting on that information. Can I get the cost of the ticket and the travel time please! Sentence6: One more question: What day will you be travelling? Sentence7: No thank you! That will be all for today! Sentence8: Sorry about that, the TR2025 costs 14.32 pounds, and is a 60 minute trip. The TR9384 leaves earlier, at 8:32, and costs the same amount. Want me to book one? Sentence9: Sure, I can help you with that. What time were you wanting to leave around? Sentence10: We have trains running every hour from 08:32 to 23:32. I can get you on the TR2025 that leaves at 10:32 if you'd like. Sentence11: Which will you be leaving from ? Sentence12: I would like to leave after 8:15. Sentence13: Which stations will you be using? Sentence14: Thank you for using this system goodbye Sentence15: No thanks. I'm actually looking for an address please. Sentence16: There are many trains getting to cambridge on saturday from broxbourne. Do you have a specific time you want to be there by? Sentence17: I will be departing from Broxbourne. Sentence18: The train should leave after 08:15. Sentence19: Broxbourne and Cambridge. Sentence20: What is the price for the TR2025? And how long is the trip? Sentence21: Please Provide me with this information, as I cannot travel without it. Sentence22: I'm looking for a concerthall in the centre. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User