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: I'm looking for a 4 star guesthouse with free parking and wifi- anything in that range? Sentence2: Yes, we have 16 guesthouses that meet your needs. If area and price don't matter, I recommend the Acorn Guest House in the north. Sentence3: sure, it is in the north. The address is 154 chesterton road and their phone number is 01223353888. Sentence4: Great! Can you give me their phone number, area and address, please? Sentence5: i am also looking for a particular attraction. Sentence6: Are there any hotel rooms left? Sentence7: welcome amd i am happy i helped you. have a good day Sentence8: Last thing I need is a taxi from Clare College to the hotel, and I need to leave by 16:30. Sentence9: thanks so much you have been very helpful! Sentence10: I have booked that taxi and your contact number is 0707064481 please look for a black ford. Sentence11: i want it to be a guesthouse specifically. Sentence12: Sure! The postcode is CB21TL. Sentence13: There are 16 hotels that match that description. Do you have a preference for location or price range? Sentence14: the list is so broad. can you specify the price range? Sentence15: I can help you with that! What is the name of the attraction you are looking for? Sentence16: I'm looking for Clare College. I'd like to get the postcode, please. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User