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: Hi, I'm looking for information on a particular restaurant called Galleria. Sentence2: How about you just choose the one you like best and give me the postcode, entrance fee, and area information for it Sentence3: Galleria serves European food in the moderate price range. It is located in the Centre of town. Would like to book a table? Sentence4: Booking completed! Booked car type : red lexus Contact number : 07555424165 Sentence5: That's all I needed. Thanks for all your help. Sentence6: Yes, please. I'd like the reservation to be at 18:30 for 5 people on Sunday. Sentence7: great day and thanks for inquiring with us Sentence8: Is there anything I can do for you? Sentence9: Great thank you so much for all the help! Sentence10: I would also like to find a museum. Sentence11: Please arrange for a taxi to pick me up from Byard art and take me to Galleria by 18:30. Provide car type and contact number too. Sentence12: Which area would you like the museum to be? Sentence13: Booking was successful. The table will be reserved for 15 minutes.Reference number is : ENOALFAV . Sentence14: OK great. Have a good day. Sentence15: Thank you that will be all. Have a great day. Sentence16: Byard art is a museum in the south. It is free to enter and the postcode is cb21sj. Anything more today? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User