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: Any is fine, I'm not picky Sentence2: Saint johns chop house is located on 21 - 24 Northampton Street. Would you like to book a table? Sentence3: How about a museum? And could you provide me with a postcode and phone number please? Sentence4: You're welcome, enjoy your stay! Sentence5: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 5CWN8I1X . Sentence6: Thank you so much. That is all I need. Sentence7: Yes. Would you be able to book Monday at 18:15 for a party of 3? Sentence8: I am looking for a restaurant called Saint Johns Chop House, can you help me find it? Sentence9: Do you have a preference on whether it is a college, museum, or entertainment? Sentence10: I'm also looking for places to go while I'm there, preferable something in the west. Sentence11: Kettle's Yard is great. Their phone number is 01223748100. The postcode is cb30aq. Sentence12: There are 13 entries that match your criteria. What entrance fee are you looking to meet? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System