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 hope you have a nice trip. Goodbye. Sentence2: I am looking for a palce to stay in cambridge that includes free parking and has a 4 star rating Sentence3: Cheap price range and a guesthouse. Sentence4: The Allenbell is very nice. It is also cheap and has 4 stars. Would you like me to book this? Sentence5: I will need a bit more information. Where will you be departing from and what is your destination? Sentence6: I have 19 results. Would you prefer a certain area or price range? Sentence7: Yes, that would work for me. Can you book me 4 tickets please? Sentence8: The train departs from King's Lynn on Friday at 12:30 and goes to Cambridge. Sentence9: ok, that helps me narrow it down a bit. Which side of town would you like it to be on Sentence10: Thank you. I also need a train on Friday. Sentence11: The Allenbell sounds great. Can I get their phone number and postcode please? Sentence12: You are all booked for train TR0674 at 13:11. Your total fee will be 39.2 GBP, payable at the station. Your reference number is WJXW4VRV . Anything else for today? Sentence13: I'm not too concerned with area. Which would you recommend, and do they have internet? Sentence14: I can not find a train leaving at 12:30. Would a train at 13:11 work for you? Sentence15: Thank you. That's all I need for now. Sentence16: The number is 01223525725, and the postcode is cb12de. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User