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: Any trains departing cambridge? Sentence2: I would recommend TR9582 leaving Cambridge at 19:11 and arriving in Kings Lynn at 19:58. Sentence3: The University Arms Hotel is a 4 star establishment. I was unable to find any expensive 5 star hotels. Sentence4: Yes, there are a lot. What day would you like to travel and where is your destination? Sentence5: I'm leaving sunday on a trip to kings lynn. I need to be there by 20:45. Sentence6: they are in the centre and the # is 01223351241 Sentence7: i will recommend university arms hotel. can i give you the contact? Sentence8: I'm also looking for a place to stay? Sentence9: Expensive. I love luxury. But I do expect free parking. Sentence10: Thanks so much. That is all I need today. Sentence11: thanks whats the phone number and area they are located in? Sentence12: Yes, that would be great. Can you book me on that train for 5 people? Sentence13: Thanks for letting us assist you today! Enjoy your visit! Sentence14: Here is the booking information:Booking was successful, the total fee is 39.2 GBP payable at the station . Reference number is : NNYALFST . Sentence15: Does the University Arms Hotel have 5 stars? I would prefer a place with 5 stars. Sentence16: There are a hotels in the expensive price range. Do you have a specific area you want to stay in? Sentence17: No i do not do you have a reccomendation? Sentence18: What is your price range? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System