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: No thanks, that will everything. Sentence2: I hope you enjoy your stay. Contact us anytime. Good bye. Sentence3: I have many. Is there a certain area you are looking for? Sentence4: Thanks that will be all. Goodbye Sentence5: Is there a room at the Lovell Lodge available for 1 person on Saturday for 3 nights? Sentence6: Are there any hotels in that area instead of guesthouses? Sentence7: There are no guesthouses that meet your criteria, can I check something else for you? Sentence8: OK, I booked a table for you at Saffron Brasserie. Your reference number is 65G14AF2 . Can I help with anything else? Sentence9: I'm looking for an expensive indian restaurant. Sentence10: I'd like to find a guesthouse in the north. I want it to have 2 stars. Sentence11: Yes it can be in centre. I would like to book it for 1 person at 20:00 on Saturday. Sentence12: Great, thanks! Now I'd just like a taxi to take me from Lovell Lodge to Saffron Brasserie by 20:00. Please give me the car and contact info Sentence13: There is the ashley hotel or the lovell lodge. Would you like me to make a reservation? Sentence14: Are you sure there is nothing else I can do for you today? Sentence15: Thank you for using our service today. Sentence16: Booking completed! Booked car type : red skoda Contact number : 07515009678 Sentence17: You are all booked! Reference number is 6O4VAAHM . Sentence18: You're welcome, thanks. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System