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: I would like to leave from Birmingham New Street. Sentence2: Same day as my Golden Curry reservation, please. Sentence3: Yes please. There will 8 of us at 15:15 on Monday. Sentence4: Yes that is all I need, thank you. Sentence5: Is there anything else i can you with such as booking reservations for entertainment ventures afterwards. Sentence6: On what day are you looking to travel? Sentence7: The TR9942 will get you there at 11:23. Would that work for you? Sentence8: Booking was successful.The table will be reserved for 15 minutes. Reference number is : 7X63LJXX . Anything else? Sentence9: I'm looking for a train as well to Cambridge that will arrive by 12:15, is there anything available? Sentence10: They are a wonderful indian restaurant in the centre of town. They are rather expensive. They are located on Mill Road City Centre. Can I help you reserve a table? Sentence11: Where will you be traveling from? Sentence12: Need a restaurant called the golden curry Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User