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 need to depart from kings lynn on Wednesday and arrive by 9:15. Sentence2: I'd like some information on the Hamilton Lodge hotel, please. Sentence3: I need to depart from kings lynn on the same day as the hotel booking. Sentence4: Enjoy your visit to cambridge. Have a wonderful day. Sentence5: It is located in the north. It is a guesthouse and is in the moderate price range. Would you like a reservation? Sentence6: Enjoy your stay at Cambridge. Sentence7: We have several trains going to Cambridge. Where will you be departing from and what date do you need the train? Sentence8: Booking was successful. Address is 156 chesterton road. Postcode is cb41da. Reference number is: RU5ZSYZS . Anything else I can help you with? Sentence9: I actually won't need a reservation, just the information you provided is enough. Thank you. Have a good day. Bye. Sentence10: How about the TR4638 train? It arrives at 08:58. Sentence11: Can you tell me when that departs and the total travel time? Also, how much is it? Sentence12: Yes, I would like to book for 6 people for 4 nights starting on Wednesday. Sentence13: Thank you for all your help. Sentence14: Yes, I need a train to cambridge Sentence15: Is there a specific time you would like to leave or arrive by? Sentence16: TR4638 leaves at 8:11 and arrives at 8:58 that's a travel time of 47 minutes. The cost is 9.80 pounds. Would you like me to make reservations? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User