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: You're welcome. Is there anything else I can do for you? Sentence2: Sorry! I don't see any results for your query of cinemas in the northern area. Do you want me to expand the search to neighboring areas? Sentence3: Excellent, may I have the address for that park? Sentence4: It should include free wifi and should be in the east. Sentence5: Yes, there is the milton county park in the north end. Sentence6: Yes please, can I also look for a cheap guesthouse? Sentence7: There seems to be an opening at Allenbell. Would you like me to book you a room? Sentence8: Booking was successful. Your Reference number is : LUDY2BH2 . Sentence9: Yes, please. 5 people for 5 nights starting thursday Sentence10: The address is: milton country park, milton. The postcode is: cb46az. Is there anything else I can do for you today? Sentence11: Hi, I'm looking for information on cinemas in Cambridge. Could you tell what my options are in the northern part? Sentence12: Thank you very much! Sentence13: No thank you. I appreciate all of your help. Sentence14: Thank you I'm glad I could help. Sentence15: Is there a park in the north area? Sentence16: Certainly. I have several options for you. Do you need wifi or parking? Is there a part of town you prefer to stay in? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System