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: Sure make me a booking for 8 people at 19:00 on monday. Sentence2: I have made reservations your reference number is KZ7IRCWH . Sentence3: Sure, where are you departing from? What is your destination? Sentence4: I am looking for a restaurant in the centre of town. Sentence5: Yes please book the train for eight people. Sentence6: What type of food are you looking for? Sentence7: How about Turkish? Sentence8: I also need a train on the same day as the restaurant booking and should arrive by 11:00 Sentence9: Nope that's it. Thank you. Sentence10: I would like eritrean, please. Sentence11: You're welcome, hope you enjoy your visit :) Bye. Sentence12: efes restaurant should be fine. it is moderately priced and located in King Street City Centre, cb11ln. can we book? Sentence13: I am leaving stevenage and going to cambridge. Sentence14: Your booking was a success. The total fee is 102.4 GBP payable at the station. Your reference number is KH92FZBE . Could I be assistance to you with anything else? Sentence15: Okay, the TR8265 arrives by 10:43 and leaves at 09:54. Would you like me to book tickets for you? Sentence16: I'm very sorry there are no restaurants that serve eritrean food in the centre area. Is there another type of cuisine we can look for? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User