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: What is your destination and the day you will be traveling? Sentence2: Personally, I think the Yippee Noodle Bar is a lot of fun. They serve Asian Oriental. Sentence3: I would like to depart from Peterborough on Thursday. I am pretty open as to departure time, but need to arrive by 08:30. Sentence4: I would like to travel to Cambridge on Thursday. Sentence5: I have the TR7094 which will get you there by 08:09, how many ticket please? Sentence6: Sure! What restaurant are you looking for? Sentence7: Hi. Can you help me find a restaurant? Sentence8: Thank you. I also need to find out about trains. Sentence9: Sounds good to me. Please book for one, 16:30 on Thursday. Sentence10: Great your reservation was successful and your reference number is MXJRF0K1 . Sentence11: Just for one person please. Sentence12: Booking was successful, the total fee is 16.5 GBP payable at the station . Reference number is : A9EBXB7W . Is there anything else you need today? Sentence13: That is all I need. Good bye. Sentence14: Just so I can get you accurate information, what's your departure location and time? Sentence15: Thanks for letting us assist you! Have a great time! Sentence16: I'd like a restaurant in the centre in the moderate price range, what can you recommend? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User