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: Where is your departure and destination? Sentence2: The train that will arrive closest to 12:30 is TR2058. You will arrive by 11:54. Can I book that for you? Sentence3: I there one that arrives close to the 12:30 time? Sentence4: Happy to be of service, and enjoy your meal! Sentence5: how about galleria? i hear it's lovely Sentence6: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 3G88NRTV . Sentence7: There are 6 trains to choose from. Should I book one of them for you? Sentence8: Can you help me find a moderately placed modern european restaurant? Sentence9: I'll be heading into cambridge from leicester, and I need to get there by 12:30 on thursday. Sentence10: Sounds good, can you book that for 1 person at 18:30 on thursday? Sentence11: The booking was successful, and your reference number is R7U78R0G . The fee is 37.79 GBP, payable at the station. Is there anything else I can assist you with? Sentence12: I also need to get a train. Sentence13: That is everything, thank you so much for your help! Sentence14: Yes, please and provide me with a reference number. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System