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: THe train booking is for the same day as my dinner reservation correct? Sentence2: Loch fyne is a great seafood place. I have booked a table for you and your reservation number is NDSUGZK9 . Anything else? Sentence3: I would like to be in Cambridge by 08:00 Sentence4: I can help you with that. First, I need to confirm that the destination is Cambridge, and can you provide the desired timeframe for travel? Sentence5: The price is 18.88 pounds. Is there anything else I can help you with? Sentence6: Sure thing! There is the Loch Fyne restaurant in that area that you may enjoy. Would you like more information? Sentence7: Feel free to get in touch if you need anything else. Enjoy your evening. Sentence8: No thank you. What is the price for that train? Sentence9: No thanks. I may be back in touch though! Sentence10: Thank you, good bye Sentence11: Is there any other restaurant that you could try for me before I call myself? Sentence12: They seem to be booked solid for the next week, which is all I can book for. Their phone number is 01223362433, if you would like to call for a reservation. Sentence13: Yes of course. Anything else? Sentence14: What day will you be wanting to dine? Sentence15: I need to find a train leaving london kings cross on Saturday as well. Sentence16: Is there a different cuisine you would be willing to try? Asian or Italian maybe? Sentence17: I'm looking for a seafood restaurant in the centre. Sentence18: As long as the seafood restaurant is in the centre I am fine with 18:00 and I need the reference number. I need a train arriving at Cambridge by 08:00. Sentence19: I'm dining on Saturday. Sentence20: That sounds great. Can you book me a table there for 3 people? Sentence21: Goodbye. Thanks for using Cambridge TownInfo centre. Sentence22: I have found train TR2687, it will depart at 05:17 at arrive by 06:08. Would you like me to book this for you? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System