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 cambridge belfry is 4 star hotel in the cheap price range in the west part of town. Do you want me to book this hotel? Sentence2: Great! I want to book it for 5 people and 3 nights starting from tuesday. Sentence3: Booking was unsuccessful. Do you want to try a different day? Sentence4: The hotel should be in the type of hotel and should have a star of 4, Sentence5: Booking was successful. Reference number is : TFAJJNJF Sentence6: Thanks, that's all I need. Goodbye. Sentence7: You're welcome! Have a wonderful day. Bye now. Sentence8: how about thursday? Sentence9: I need to be in the centre. Is there a guesthouse available, if there are no hotels? Sentence10: There is not a cheap hotel in the centre area. Is there another area I can look for you? Sentence11: The alexander bed and breakfast is a 4 star guesthouse, located at 56 saint barnabas road. Sentence12: I am looking for a place to stay. The hotel should be in the centre and should be in the cheap price range Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User