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 recommend the restaurant alimentum at 152 - 154 Hills Road. Sentence2: Okay. Enjoy your dinner. Sentence3: I was able to book yippee noodle bar, reference number is UCWKFIS4 . Sentence4: I need a place to dine, does not matter what type, in the moderate price range. Sentence5: I want to book a table for 2 people at 19:00 on sunday. Sentence6: I couldn't find an available table for you. Would you like to find another restaurant? Sentence7: Is there anything else I can help you with today? Sentence8: No that will be it. Thank you. Sentence9: Thank you for your time. I appreciate it. Sentence10: I guess that would be fine, I really want modern european food. Could you make sure it is in the same area and price range. Sentence11: Unfortunatly, I can not find anything available given your parameters. Sentence12: I need to find a restaurant that is moderately prices and serves modern european food. Sentence13: Have you made the reservation? Sentence14: No I would like you to make the reservation for me please. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User