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'm sorry, I only know that it is moderately priced. Can I book a room for you? Sentence2: What is the price range? Sentence3: Is there a particular area of the city where you'd like to stay? Sentence4: No that's all. Thanks! Sentence5: Yes. There are a number of hotels with wifi. Archway House is one of them that I can recommend. Sentence6: You have a nice day. Good bye. Sentence7: Howdy! I'm in town for the night and need a place to stay. I'd like a four star joint with free parking, if you please. Sentence8: no that's fine. Sentence9: Nice! I hope you enjoy this beautiful city, I found 5 hotels for you. What is your price range? Sentence10: Is there anything else you will need today? Sentence11: Archway house is in the moderate price range. They are located at: 52 gilbert road. Anythign else you need? Sentence12: I have 16 guesthouses that are 4 star and have parking, do you have any other requirements to help narrow the search? Sentence13: I don't have a price range. As long as it's nice. Sentence14: Sure, what is its address and price range? Sentence15: Do any of those have free wifi? Sentence16: No, I don't care about the area, either. But do you have a guesthouse? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System