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: You will be going to Cote by 19:00, will you be departing from your hotel? Sentence2: I was able to book you for 4 nights starting on Thursday for 8 people. The confirmation number is UOF6DHN8 . Is there anything else? Sentence3: You too, enjoy your stay! Sentence4: We will be leaving from there. Sentence5: Booking completed! The taxi will be a red honda and their Contact number is 07854504953. Is there anything else I can assist you with? Sentence6: i want it to arrive at the restaurant by the booked time. Sentence7: I'm looking for a hotel called home from home. Sentence8: That is booked! Your reference number is HQOSMVL8 . Can I help with anything else? Sentence9: That'll be it for me today! Thanks! Have a good one. Sentence10: No, I'd like a room for 8 people. We'll be checking in on thursday for 4 nights. Sentence11: I'm looking for French food. Sentence12: Home from Home is located in the North area and is moderately priced. Would you like more information? Sentence13: I would recommend Cote. It is expensive but good. Can I reserve a table for you? Sentence14: Yes, please make 8 reservations for Friday night at 19:00. Sentence15: I need to make sure it arrives at the restaurant by the booked time. Sentence16: Sure thing, what kind of cuisine are you looking for? Sentence17: Where would you like the taxi to pick you up from? Sentence18: I also need a taxi. Sentence19: Yes, I also need an expensive restaurant located in the centre. Sentence20: What day and time do you need the taxi? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System