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: Can you help me find a place to stay in the north? Sentence2: When would you like the taxi for? Sentence3: You're quite welcome! Thanks for using our services today. Goodbye! Sentence4: I will also need a taxi. Sentence5: Booking completed! Booked car type : black toyota Contact number : 07497343822 Is there anything else I can assist you with? Sentence6: Awesome. Are there any good Indian restaurants close to the hotel? Sentence7: I was able to book it, reference number is TGKX5Y65 . Sentence8: There is the nirala which is moderately priced and the royal spice which is cheap. Would you like me to book one? Sentence9: I would like to go from the hotel to Nirala to make sure I get there for that reservation. Sentence10: Your booking was successful. The table will be reserved for 15 minutes. Reference number is : R6H3QHUE . What else can I help you with today? Sentence11: Yes, 4 people, 4 nights, start from Wednesday. Reference number please. Sentence12: Yes, I'd like to book the Nirala for Wednesday for 3 people at 15:15, please. Sentence13: There is a moderately priced, 3 star guesthouse named the Alpha-Milton Guesthouse. Can I help you book your stay? Sentence14: It does not really matter. It does not need internet or free parking. Sentence15: Thanks so much! That's everything for now. Take care! Sentence16: Yes! Would you like to stay in a hotel, or a guesthouse? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System