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: Is the Express by Holiday Inn cheap? And have a star of 4? Sentence2: Sounds great. Could I also get info on a train for monday? Sentence3: It should depart Cambridge to Peterborough. I need to be there by 21:30. I need reservations for 8. Can I get a reference number please? Sentence4: It is in the expensive price range with a 2 star rating. Sentence5: The only hotel that fits that description is the Express by Holiday Inn Cambridge, but there are also several guesthouses if you are interested. Sentence6: TR9003 will have you there by 7:56. Booking was successful, the total fee is 132 GBP payable at the station . Reference number is : AV90SV4C Sentence7: Thank you for calling. Enjoy your trip. Goodbye. Sentence8: Hm, I would rather stay at a cheap hotel with a 4 star rating. Sentence9: I am looking for a hotel with free parking in east cambridge. Sentence10: I just would like their postcode and phone number and can you tell me whether they have free wifi? Sentence11: Thanks for all of your help today. That is all I need. Bye. Sentence12: Okay! They do have internet. Their postcode is CB58RS, and their phone number is 01223575122. Sentence13: Please give me your departure and destination. And what time do you want to leave at. Sentence14: Autumn House has all your requirements except it not being a Holiday Inn Express. Would you like a booking there? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System