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 would like the postcode of Aylesbray Lodge and I would like to find where the Milton Country Park is located. Sentence2: The postcode for Aylesbray Lodge Guest House is cb17sr. Milton Country Park is located in the north in Milton and the post code is cb46az. Sentence3: Im not sure but I would like to stay in a 4 star guesthouse. Sentence4: THank you so much for all your help. Sentence5: I need both pieces of information right now. Sentence6: What price range would you like? Sentence7: I am looking for something moderately price and that is 4 star rated. I prefer a guesthouse also. Sentence8: Is there a specific area you would like to be in? Sentence9: I have 7 guesthouses in the north, 3 in East and 1 in the South. Would you like me to book the Aylesbray Lodge Guesthouse in the South? Sentence10: I'm excited about my trip to Cambridge to sight see, and need a hotel while I'm there. Sentence11: You are quite welcome. Sentence12: I can only process one req at a time. Which one would you like first? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System