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: I have train TR6009 that leaves at 08:34 and will arrive in Peterborough at 09:24. Would that work for you? Sentence2: Have a nice day. Thank you for contacting us. Sentence3: I'm looking for train tickets, can you help with that? Sentence4: There are many trains going to peterborough from cambridge. What day and time do you want to leave? Sentence5: No thanks, that was all I needed. Goodbye. Sentence6: Yes please book me a room for 4 people for 2 nights starting from Tuesday. Sentence7: No, I'm sorry there aren't any hotels that meet that criteria. Would you like to try a different area? Sentence8: Booking was successful at ashley hotel . Reference number is : DHVIHB9V . Can I help you with anything else today? Sentence9: Yes, Where will you be arrive from and going to? I also need a date and time. Sentence10: The travel time is 50 minutes. Sentence11: What is the travel time? Sentence12: Are there any 2-star hotels (not guesthouses) in the south that have free parking? Sentence13: I want to go to peterborough and depart from cambridge. Sentence14: In the north, I have 2 places. The first is the Ashley Hotel and the other is the Lovell Lodge. Did you need me to book you a room? Sentence15: Is there anything in the north? Sentence16: I'd like to leave Thursday after 8:30 please. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System