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: There is one theater located in southern Cambridge. The Junction is located on Clifton Way, cb17gx. You may can 21223511511 for more information., Sentence2: What will be your destination and arrival or departure times? Sentence3: From the hotel that was booked for me Sentence4: What is the postcode? Sentence5: I want to check out a theater in the south area of cambridge. Sentence6: There are not any in the area that match your requirements. Would you like me to check another area? Sentence7: How about one in the south? Sentence8: I have made your booking and here is the information:Booking was successful. Reference number is : O8FKIXR2 . Sentence9: Unfortunately I don't have that information. But, again, you could call them at 01223511511 for that information. Sentence10: Postal code is cb17gx, the address is clifton way. Sentence11: thanks alot for helping. have a good day Sentence12: Please state your departure site and destination site so I can book that taxi. Sentence13: Your taxi has been booked. It will be a white Tesla and the contact number is 07767786743. Sentence14: Thanks! I also need to book a taxi from the hotel. Sentence15: no, i don't. I just a reservation for 4 people for 4 nights starting on saturday. Sentence16: You're welcome, and thank you, likewise! Sentence17: What is the entrance fee? Sentence18: I need to go to the theatre. I need to leave the hotel by 13:00. Sentence19: Can you recommend a moderately priced hotel in the centre, that has free internet and free parking? Sentence20: Yeah, there are two in the south. Aylesbray Lodge and Bridge Guest House. Do you have a preference between the two? Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System