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: Great, that's all I need. Thanks for your help! Sentence2: The phone number to the cambridge punter is 07807718591. Do you have any other questions about this location? Sentence3: TR0466 leaves at 06:09. Sentence4: Let's go with the cambridge punter. May I get the phone number to that please? Sentence5: I would like to arrive by 08:30 and want to leave on Sunday. Can you help me with that please. Sentence6: I'm happy I could help you today. Have a great day! Sentence7: There is a train arriving at 06:54 and one at 07:54. Which would you prefer? Sentence8: I'm looking for boat attractions in the centre area of town. Sentence9: There are 2 boat attractions named "scudamores punting co" and "the cambridge punter." Sentence10: There are over 100 trains from which to choose. What day and time would you like to travel? Sentence11: The 7:54. May I please have the train ID and departure time? Sentence12: I am also looking for a train leaving from leicester to cambridge. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User