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 am looking for a restaurant called Panahar. Sentence2: Great, could I get the address there? Sentence3: Perhaps I could help you find an attraction to visit while you're in town? Sentence4: Thanks so much. Let me double check my list. Sentence5: Panahar is an expensive Indian restaurant located at 8 Norfolk Street City Centre, cb12lf. Their phone number is 01223355012. Would you like to book a table? Sentence6: Corpus Christi in the centre is quite beautiful, in my opinion. Sentence7: You taxi is booked. Look for a black lexus, contact number is 07439355567. Can I help with anything else? Sentence8: we have several 3 in the west and 2 in the centre of town, any preference? Sentence9: Yes, for 5 at 11:00 on thursday Sentence10: I also need a taxi to take me between the two places. Sentence11: I have booked your reservation for 5 on thursday at 11:00. Your reference number is 2UOIVX5L . Is there anything else I can help you with? Sentence12: I believe that is all for today. I really appreciate all your help. Have a great day. goodbye Sentence13: I don't have a specific college in mind, do you mind giving me your recommendation? Which one do you think is the most beautiful? Sentence14: Sure, their address is king's parade. Do you need anything else? Sentence15: That would be great. I'm looking for a place to go in the centre. A college would be nice. Sentence16: excellent, have a great day! Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User