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 Archway House has wifi. Also, I see that the train was not booked. I can book the TR8225 leaving stevanage at 11:54 and arriving in Cambridge at 12:43. OK? Sentence2: Okay I have many options. Any price preferences? Sentence3: we do not have email contact information on the venues. but you can call them if you like. their phone number is 01223575314. Sentence4: How about train TR8799, which departs on Sunday at 11:00 and arrives by 11:51? Sentence5: Perfect, the Archway House is booked for one person. The reference number is XXA3VM1F . The price is not listed online, the phone number is 01223575314. Sentence6: I'm unsure if the wifi at Alexander Bed and Breakfast is free but it is cheap and in the center of town and definitely does have internet access. Would that do? Sentence7: Actually, I'm sorry. Would you be able to confirm that the hotel you've booked has wifi? I don't have that in my notes. Sentence8: The price is 18.88 pounds. Would you like me to book it? Sentence9: Yes that is everything thank you for all your help. Goodbye Sentence10: no, i just need to know the price Sentence11: That sounds good, how much is a ticket? Sentence12: Is there an email I can contact them at? Sentence13: That would be all thanks you very much Sentence14: I don't actually need the train booked yet, I just needed to know the price. I think I have everything I need now, thanks for your help! Sentence15: Okay. I would like to book the Archway House for three nights and for one person starting on Sunday and what is the price. Sentence16: Yes, I have 404 trains running on Sunday. Where are you departing from? Sentence17: Actually, I would prefer a guesthouse is the north. Sentence18: Yes please go ahead and book that for me. I am also looking for a place to stay and can you find me a Guest house with free wifi? Sentence19: The price is 10.24 pounds per ticket. Sentence20: You are welcome. Are you sure that all your questions have now been answered? I can wait. Sentence21: I want to know if any trains run on Sunday? Sentence22: You are welcome! Have a great trip to cambridge! Sentence23: I'll be heading to Cambridge from Stevenage, and I'd like to arrive on Sunday by 12:45, please. Sentence24: I would recommend Archway House, it is moderately priced and 4 stars. Would you like a reservation? Sentence25: OK, thank you for choosing to visit cambridge, enjoy your stay. Sentence26: Thank you for looking that up for me. Question: Who has spoken the sentence 23? (A) User (B) System
Output: 


Answer: (B) System