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: Thank you, goodbye Sentence2: Hi, I'm looking for a train that is going to cambridge and arriving there by 20:45, is there anything like that? Sentence3: That sounds great, could you make a booking for me please? Sentence4: Can you confirm your desired travel day? Sentence5: Thanks so much. I would also need a place to say. I am looking for something with 4 stars and has free wifi. Sentence6: That will, yes. Please make a booking for 5 people please. Sentence7: Please book it for Wednesday for 5 people and 5 nights, please. Sentence8: How about the cambridge belfry? It has all the attributes you requested and a great name! Maybe even a real belfry? Sentence9: I would like to leave on wednesday Sentence10: Goodbye. If you think of anything else you need don't hesitate to contact us. Sentence11: What day would you like your booking for? Sentence12: There are over 1,000 trains like that. Where will you be departing from? Sentence13: I've booked your train tickets, and your reference number is A9NHSO9Y . Sentence14: I show a train leaving birmingham new street at 17:40 and arriving at 20:23 on Wednesday. Will this work for you? Sentence15: Booking was successful. Reference number is : 5NAWGJDC . Sentence16: I am departing from birmingham new street. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User