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 please tell me your departure and destination locations? Sentence2: Have a great day. Goodbye. Sentence3: its address is anglia ruskin university, east road and it has a free entry Sentence4: I am planning a trip in Cambridge Sentence5: Yes, Can you please tell me the travel time? Sentence6: Thanks! I'm also looking for a train leaving on wednesday and arrive at 12:00 Sentence7: Thank you for contacting the Cambridge TownInfo centre. Goodbye. Sentence8: That is all I need today. thank you. Sentence9: what is their postcode and phone number? Sentence10: you are very welcome Sentence11: I will leaving Norwich and going to Cambridge. Sentence12: Their postcode is cb11pt and phone number is 0124549131 Sentence13: The TR1180 will leave Norwich for Cambridge Wednesday at 09:16 and arrive at 10:35. The cost of the train is 17.60 lbs. Would you like me to book it? Sentence14: No, but I do need some information on the Ruskin Gallery. Sentence15: Thank you. Will the train provide any snacks or a meal? Sentence16: Thank you so much! Sentence17: you are so welcome Sentence18: the trip is 79 minutes long Sentence19: Excellent! Do you need assistance with transportation arrangements? Sentence20: I am sorry but we are not given that information in our systems, you will have to ask when you arrive. Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System