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 want to leave the park by 10:15. Sentence2: Could I get a postcode and a phone number? Sentence3: What will be your departure site? Sentence4: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence5: That's all I need now. Thanks. Sentence6: Great! You might like Milton Country Park in the north. It has free entrance. Would you like more information? Sentence7: I want a nice park to visit while i'm in town. Sentence8: Just to clarify, would you like to arrive at milton country park by 10:15 or leave the park by 10:15? Sentence9: Their address is milton country park, milton, postcode cb46az. Can I help you with anything else? Sentence10: Great, they are located at G4 Cambridge Leisure Park Clifton Way Cherry Hinton. Would you like me to reserve a table for you? Sentence11: Of course. Would you prefer Italian at Pizza Hut Cherry Hinton or Restaurant Alimentum that serves modern european? Sentence12: Thank you. I also need your help finding a moderately-priced place to eat in the south part of town. Sentence13: Thank you, I have booked you a grey ford taxi, the contact number is 07348401469. Is there anything else I can help you with? Sentence14: Can I get their address please? Sentence15: I want Italian, so let's go with Pizza Hut Cherry Hinton. Sentence16: Thanks! I also need a taxi to get to the attraction by 10:15. Can you help? Sentence17: The postcode is cb17dy and the phone number is 01223323737. Sentence18: I'd like to leave Milton Country Park by 10:15 and go to Pizza Hut Cherry Hinton. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User