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: TR6336 departs at 21:29 and arrives at 22:07 for 10.10 pounds. Do you wish to book this one? Sentence2: No problem! Where will you be departing from and where is the destination? Sentence3: Could I please have the phone number for the Autumn House? Sentence4: Sure. Autumn House is a cheap, guesthouse type hotel in he east part of town. It has 4 stars. Sentence5: I have heard wonderful things about the autumn house hotel. Could you provide me with some information on this hotel please? Sentence6: Sure! The number is 01223575122. Is there anything else I can do for you? Sentence7: Sounds right, would you book it for 6 people? I will need the reference number, thank you. Sentence8: You're welcome. Have a wonderful trip! Sentence9: I need to leave bishops stafford and head into cambridge. Sentence10: I would like to book a train for Thursday after 20:45. Can you help? Sentence11: Perfect thanks for such great help Sentence12: No thank you. But thank you very much. Sentence13: Your Reference number is : VCAW5JNF . Is there anything else that I can help you with? Sentence14: You're welcome. Would you like a booking or any other information? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System