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: The dojo noodle house would be an option for you Sentence2: Booking was successful. The table will be reserved for 15 minutes. Reference number is : K77JVT2U . Can I help with anything else? Sentence3: I am also looking for a hotel in the same area as the restaurant. Sentence4: I would like it to be in the centre of town. Sentence5: I am glad I could be of service. Have a great day. Sentence6: I recommend alexander bed and breakfast, would you like more information or a booking. Sentence7: What area would you like to be in? Sentence8: Great, I need a room for 4 and 3 nights starting from Friday. Sentence9: book a table for 4 people at 17:00 on friday. Sentence10: yes it is 4 star Sentence11: I'm looking for a cheap asian oriental restaurant. Sentence12: There are two guesthouses and three hotels in the centre of town. Perhaps we can narrow it down by price range. Sentence13: Can you select one of the restaurants with the cheap price range in the center of town? Sentence14: Same price range as the restaurant please Sentence15: That is all, thank you. Sentence16: Is it a 4-star guesthouse? Sentence17: Yes, 4 of them are in the Centre of town. Two of them are cheap, one moderate, and one expensively priced. Would you like to book one of them? Sentence18: There are 5 Asian Oriental restaurants available. Are you interested in a particular area or price range? Sentence19: Is there one in the centre? Sentence20: Done! Your reference number is 8F3G9DY8 . Can I help you with anything else? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System