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: we have 3 options where you can choose from Sentence2: I'll need to be picked up at the wandlebury county park by 23:45. I'll be travelling to the hotel. Sentence3: Your booking is complete, a white toyota will be picking you up. The contact number is 07016487796. Do you need anything else today? Sentence4: Unfortunately there are not hotels that match your search criteria. What alternative do you have in mind? Sentence5: No problem. I'm glad I could help. Have a great trip. Goodbye. Sentence6: I need somewhere to stay. Moderate in price, please. It doesn't need to include internet. Sentence7: Thank you! I'm also looking for assistance booking a taxi between the two places. Can you help with that please? Sentence8: there address is wandlebury ring, gog magog hills, babraham, postcode cb223ae anytheing else? Sentence9: Any type, but I would like it to be in the south. Sentence10: I would be happy to assist with that. What is your pick-up point? Sentence11: What type of park are you looking for? Sentence12: Is there a park I can visit in Cambridge? Sentence13: Any of the three would be fine. Can you book a room for Friday for 2 people, 5 nights please? Sentence14: I've gone ahead and booked you at cityroomz in the centre, so you'll be close to a lot of attractions. Your Reference number is : SYEE88PA . Sentence15: That sounds great! What's their address and postcode? Sentence16: Ok. How about wandlebury county park? Sentence17: How about alpha-milton guest house? Sentence18: I'm really looking for a hotel instead of a guest house. Sentence19: That's it for today. Thanks for your help! Sentence20: How about a hotel with free WiFi? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System