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! Can I have the postcode please? Sentence2: That is all I needed thank you for your help. Sentence3: Yes I can, your reference number for that booking is IIRB479M . Is there anything else I can do? Sentence4: Can you reserve a table for just 1 person on Saturday at 13:45? Sentence5: The postcode is cb17gx. Do you need help with anything else? Sentence6: Byard Art is a great place. They are located at 14 King's Parade and their number is 01223464646. Their is no entrance fee. Sentence7: Yes, there's a restaurant called The Lucky Star and is on Cambridge Leisure Park Clifton Way Cherry Hinton. Their phone number is 01223244277. Sentence8: Actually, can we see if there are any theaters to visit in the area? Sentence9: i'm also looking for some places to go in town. Sentence10: Is this a theatre or museum? Sentence11: Can you help me find a cheap restaurant in the south that serves Chinese? Sentence12: yes, there's a theater called The Junction on Clifton Way. Sentence13: I can make a reservation for you. Do you know what day? Sentence14: Glad to have been of help. We're here if you need anything else. Thanks for using the Cambridge TownInfo centre. Have a great day. Sentence15: Thanks so much for your help do you know if I need to make a reservation? Sentence16: Byard Art is a museum. Is there anything else I can help you with today? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User