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 site and what day are you planning to travel on? Sentence2: Yes I will get a confirmation number for 7 Sentence3: South area please. Sentence4: I need to arrive in birmingham new street by 17:45 on wednesday. Sentence5: Please for Wednesday at 14:45. Sentence6: Have a good day! Sentence7: I have train TR5558 arriving on 17:44 is that okay? Sentence8: Thanks. I am also looking for a cheap Chinese restaurant. Can you help me with this? Sentence9: Thanks for you help. That is all. Sentence10: Would you prefer in the Centre or South area? Sentence11: Thanks. Again, it is for Wednesday. Sentence12: Thank you for all your help. That will be it for now. Sentence13: Yes, that will work. Can I make a booking for 7 people please? I will need a reference number. Sentence14: For all 7 of us, and I'll need the reference number for that as well. Sentence15: I have found The Lucky Star that meets your requirements. Would you like me to book it for you? Sentence16: I need a train leaving cambridge I want to be at my designation by 17:45. Sentence17: Thank you is there anything else today that I can help you with? Sentence18: How many people will be in your party? Sentence19: Booking was successful for TR5558. The total fee is 525.69 GBP payable at the station. Reference number is: 7GOR98HS . Do you need further assistance with anything? Sentence20: Great. Your reference number is TIA1WMSZ . Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User