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: Can you be more specific on the travel time. I have a tight schedule to keep. Can you tell me in minutes? Sentence2: Thank you. Can you make the booking? Sentence3: Okay, is there anything else I can help you with today? Sentence4: Yes I can make the booking for you. How many people will be traveling? Sentence5: There are 3 options available to you. Is there a specific price range you are looking for? Sentence6: The exact travel time is 105 minutes. Sentence7: I'll be leaving from Cambridge on Tuesday. I'd like to get to Leicester by 18:00 please. Sentence8: TR0469 arrives by 17:06, would you like me to book you passage? Sentence9: Sure thing where will you be traveling from, and what day and time will you be traveling? Sentence10: Not yet. What is the price and travel time? Sentence11: Ok. Just let us know if you need anything else. Have a great day! Sentence12: No thank you. I also need to find a train going to Leicester. Sentence13: The price for that one is 37.80 pounds and the travel time is a little under 2 hours Sentence14: You know what, don't worry about it, the trains are never full, I'll just grab a ticket at the station. Sentence15: I think that was all the information I needed for now. Sentence16: How about the moderately priced Anatolia? The address is 30 Bridge Street, cb21uj. Would you like me to book that? Sentence17: No,could you recommend one and give me the address, price range, and postcode. Sentence18: Are there any Turkish restaurant in the Centre location? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System