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: They are located at gonville place. Would you like to book a room there? Sentence2: How about a train that will arrive by 12:15 heading to london liverpool street? Sentence3: Can you help me find a place to stay that is expensive and includes free parking? Sentence4: Yes, that sounds perfect. Can you make me a booking for 1 person please? Sentence5: Excellent, thank you! Sentence6: Area doesn't really matter, but I would like a 3-star place with internet. Sentence7: Could you give me the address, please? Sentence8: Booking was successful, the total fee is 13.28 GBP payable at the station . Reference number is : 39JEV1T5 . Sentence9: Nah, not right now. I do need info on a train though. What's the schedule like on Sunday trains leaving cambridge? Sentence10: Is there anything else I can help you with? Sentence11: Thank you for your help. Sentence12: Absolutely, what area were you wanting to stay in? Sentence13: There are two hotels that meet your preferences. I suggest the Gonville Hotel as it's in the city centre. Sentence14: Train TR0995 arrives by 11:27. Would you like me to book you a ticket? Sentence15: I'll be happy to help you with that. Where would you like to travel to? Sentence16: You are welcome. Let us know if you need anymore assistance. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System