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 quite a few in the north when are you planning your stay? Sentence2: I'm sorry, you mentioned that earlier. I've got your taxi booked. It will be a red Tesla, the contact number is 07760358173. Is there anything else I can help you with? Sentence3: Perfect, could you give me their post code? Sentence4: Is that located in the north? Sentence5: I want to go to the Riverboat Georgina, please. Sentence6: The Cambridge Punter is located at 251a Chesterton Road. Would that fit the bill? Sentence7: what time would you like to leave or arrive by? Sentence8: Great thank you so much. Sentence9: We have guesthouses and hotel ranging from 0 to 4 stars. Do you have a preference on price range so we can narrow it a bit more? Sentence10: Great. I am also looking for a place to stay in the north. Sentence11: You're welcome! What is you destination? Sentence12: I'd like to leave the hotel by 3:15 please. Sentence13: Would you like me to suggest one for you? Sentence14: 5 nights, starting from Thursday. For 3 people. Reference number please. Sentence15: I would recommend the archway guesthouse, do you want more information or a booking? Sentence16: Your welcome, I'm glad I could help. Sentence17: Okay. Your booking was successful. The reference number is 6WM7SEWY . Can I help with anything else today? Sentence18: Thank you, that will be all for today. Sentence19: i want to do some boating today Sentence20: Sorry, the cambridge punter is in the center, but there's the Riverboat Georgina in the north. Sentence21: I will work on looking for one and let you know shortly. Sentence22: The hotel should be in the same area as the attraction and should have a star of 4. Sentence23: Yes, please pick one for me. Sentence24: of course! it is cb41as Sentence25: I also need a taxi to leave the hotel by 3:15. Please provide the contact number and car type. Sentence26: I would like you to book please. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User