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: That will be all. Thank you so much. Sentence2: The address for Tenpin is cambridge leisure park, clifton way in postcode cb17dy. Is there anything else I can do for you today? Sentence3: Is there a specific type of attraction you are looking for? Sentence4: You have a reservation at Restaurant Alimentum. Your reference number is JBVUMN45 . Sentence5: Tenpin is located at cambridge leisure park, clifton way. The entrance fee is unlisted. Sentence6: I need an address for the cambridge leisure park. Sentence7: I would like to find some entertainment in the same area as well. Sentence8: I'm sorry I can't find any price listings. Can I help you find something else? Sentence9: I see both an Italian and a Modern European restaurant in that area in your price range. Which would you prefer? Sentence10: I am looking for something entertaining please. Sentence11: Is there another one that tells you how much it is? Sentence12: Can you please recommend one and give me their address and entrance fee? Sentence13: I need a restaurant in the south that is moderately priced. Sentence14: any will be fine with me. book a table for 8 at 15:15 on monday Sentence15: Your welcome. Have a lovely stay! Sentence16: There are two entertainments: nusha and tenpin. Do you want more information about either one? Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System