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 have no entries for that area,would you like me to check another? Sentence2: There are no results for that. Is there a different type of food you'd like to try in that area? Sentence3: Is there a restaurant with my criteria that serves British food? Sentence4: Either a fee or not is fine it woes not matter. Sentence5: Sorry yes I did, would you prefer free or is a entrance fee okay? Sentence6: Are there any sports related entertainment venues on the west side of Cambridge? Sentence7: Have a great day. Goodbye. Sentence8: You couldn't find a museum in the west area? Sentence9: What is the address for Lynne Strover? Sentence10: sorrry i could not find a searching matching the same Sentence11: I have the lynne strover gallery or kettle's yard in the west that is free. Sentence12: Booking was successful. The table will be reserved for 15 minutes. Reference number is : VAGMWR8S . Sentence13: It does not matter. Just make a recommendation and book a table for 4 people at 13:45 on Friday. Sentence14: Can you look for a museum in that area? Sentence15: Okay thanks. That's all for now. Bye. Sentence16: Thank you, we will try there! Now I need help finding a restaurant that serves African food that is in the same location as the museum. Sentence17: There are 3. Two are expensive and one is moderately priced. Which would you prefer? Sentence18: The address is 23 high street, fen ditton. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User