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 hope you have a great stay in Cambridge! Sentence2: In order to book a train I need departure location, destination, travel time, day of week and number of people. Sentence3: Yes, please. I'll write it down. Sentence4: between which areas will you be commuting? Sentence5: Yes I'll need a table for 7 on Monday please. Sentence6: Yes, please. The same group from the restaurant will be traveling. Sentence7: Is there anything else I can help you with today? Sentence8: Sure, I like Chinese. Sentence9: Would you like me to book tickets for you? Sentence10: I will be departing from Leicester and would like to arrive by 11:45. Sentence11: I was hoping to find an expensive restaurant in the south. Sentence12: The good luck chinese food takeaway is located at 82 Cherry Hinton Road Cherry Hinton. Would you like to reserve a table? Sentence13: There are five expensive restaurants in the south. Would you like to try a Chinese cuisine? Sentence14: For Friday for 2 people thank you ! Sentence15: Would you like a reference number? Sentence16: That is all I needed. Sentence17: I'm also in a need of a train Sentence18: TR7151 has been booked! Your reference number is Q34HN7VC . Sentence19: What time would you like to dine on Friday? Sentence20: I'll need the train to come to Cambridge, please, so that I can make it to the restaurant that you've booked for me. Sentence21: Ok, I was able to make a booking for 7 people at 17:15. Your reference number is : J2YDX084 . Can I help with anything else? Sentence22: Oh, around 17:15. But, I meant to say on Monday, not Friday and for 7 people not 2. Thanks! Sentence23: Thank you so much for your help. Sentence24: Okay, and when would you like the reservation to be? Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User