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: There is only one hotel in the north area and its address is 365 milton road. Sentence2: i request you to book it for 6 people and 2 nights starting from friday Sentence3: I just need the reff number for the train you booked. Same group of people will be needing tickets. Sentence4: Ok, I'm showing three hotels in the moderate price range with free internet. I suggest the lovell lodge in the north. Sentence5: Booking was successful. Reference number is : PF88WYIU .is there anything you want me to do? Sentence6: No, I think that's everything for now. Thank you. Sentence7: you are welcome any time you need us Sentence8: Was that the Lovell Lodge that was booked? Sentence9: No, as long as it is a hotel and not a guest house. It also needs to have free wifi please. Sentence10: Was there a particular section of town you were looking for? Sentence11: I've got you all booked! You have 6 tickets on the TR9802 for a total of 99.60 gbp and you can pay at the train station. Anything else? Sentence12: I need a moderately-priced place to stay. I don't care about parking. Sentence13: Can I get the reference number please? I think that that will be all I need. Thanks for your help! Sentence14: Yes, i also need to book a train to Cambridge as well. Sentence15: Thank you and have a great day. Goodbye. Sentence16: thanks alot, you are great Sentence17: OK, we have ten trains that day, any time in mind? Sentence18: Can you get me the address to every hotel in the north. Thank you Sentence19: I will get that number for you now. Sentence20: Yes it was, can I assist with anything else? Sentence21: I will be traveling on Friday from London Liverpool Street to Cambridge. Sentence22: Thanks for your help, that's all I needed. Have a good day. Sentence23: welcome anytime you wish to inquire anything Sentence24: Of course. The reference number is FAE4OIMM . Can I help you with anything else today? Sentence25: I would like to leave after 15:30. I will need to book for 6 people. Sentence26: sure, what day are you traveling? Question: Who has spoken the sentence 24? (A) User (B) System
Output: 


Answer: (A) User