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 would like the address please. Sentence2: Thank you anything else you need help with today? Sentence3: it is a cheap guest house located in the centre. you want their phone number? Sentence4: I glad we could assist you today. Feel free to contact us anytime, and have a pleasant trip. Sentence5: I will be departing the hotel by 19:00. Sentence6: No, that will be all. Thank you very much for your help. Sentence7: The gardenia is located at 2 Rose Crescent City Centre. Their post code is cb23ll. I can help you with the taxi. Where are you departing from? Sentence8: They are located at 56 Saint Barnabas Road. Do you need help with anything else today? Sentence9: The phone number is 01223356354. Sentence10: Howdy, it would help me a great deal if you could please get me some information about the alexander bed and breakfast Sentence11: I need the phone number, address, and postcode Sentence12: Great, thanks for your help! Sentence13: I was able to book that for you. Be expecting a yellow Skoda. Should you need to reach them, please call 07153240944. Sentence14: I need the address and postcode. I need a taxi to pick me up at the hotel by 19:00. I need the contact number and car type please. Sentence15: The Gardenia is your best bet. It's cheap, but fantastic. Would you like to book a table? Sentence16: They are 4 stars. Does that work for you? Sentence17: Yes, that is perfect! Can you also find a restaurant in the centre? I'm looking for Mediterranean, but not too expensive. Sentence18: Could you provide me with the star rating of the Alexander bed and breakfast? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System