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: Would you like me to book you at the gonville? Sentence2: I also need a place to stay. I'm looking for a 3 star place in the expensive price range. Sentence3: I am looking for a train on sunday that will leave after 17:30 Sentence4: Yes please. Remember there are 6 people. It should be at least 3 stars and expensive. Sentence5: The postcode is cb11ly. Is there anything else I can do for you? Sentence6: You are very welcome. Have a great stay. Sentence7: Perhaps I can book it. I will just need the postcode Sentence8: How long would you like to stay? Sentence9: Just 1 night would be perfect. Thank you. Sentence10: Where will you be traveling from and to? Sentence11: TR9320 will leave at 18:09 and arrive at 19:54. Can I book that for you? Sentence12: I prefer the gonville. Sentence13: There are two gonville hotel at the centre and the lensfield hotel in the south, which one do you prefer? Sentence14: Before booking the hotel I need to know how many days will you stay? Sentence15: No that is all. Thank you for the help? Sentence16: Please do, I will need this for 6 people. Can I also have the reference number as well? Sentence17: I am leaving Leicester and going to Cambridge. Sentence18: Booking was successful and your reference number is 0RKJ93UG . Can I help you with anything else today? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System