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: Which place is the departure site and which is the destination? Sentence2: The departure will be the hotel postcode cn21en to travel to the Junction. Sentence3: That is all, thanks. Sentence4: Enjoy your visit to the Junction! Have a great day! Sentence5: you are welcome and have a good day Sentence6: Done! You'll be picked up in a red Skoda, and the contact number is 07784377878. Can I help you with anything else? Sentence7: Ok great and what time do you prefer? Sentence8: cb21en, post code. Adress is 53-57 lensfield road. Shall I book you in? Sentence9: It is located in the south part of town at clifton way. Sentence10: The postcode for The Junction is cb17gx. Can I help you with anything else? Sentence11: The Lensfield Hotel is nice. Would you like a room? Sentence12: Yes actually I am looking for a place to stay in the epensive price range with free wifi, a 3 star rating and also free parking. Sentence13: No, but can you get me a taxi between the two places? Sentence14: Great! Can I get the postcode? Sentence15: Yes, I sure would. Can you also tell me the address and postcode? Thanks! Sentence16: Sorry, I actually want to go from the attraction to the hotel. And I want to leave the attraction vy 19:45. Book that please and give me the info. Sentence17: Nope, that will be all. Thanks and have a good day. Sentence18: I'm interested in going to The Junction during my upcoming trip to Cambridge. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User