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: You are welcome. Have a great day. Sentence2: What's the address, postcode, and phone number for that place? Sentence3: You are welcome, enjoy your day. Sentence4: Certainly. What time do you need to be in Cambridge? Sentence5: Thanks. Enjoy your day too. Bye now. Sentence6: Are you looking for a hotel? Sentence7: I need it to arrive by 13:15. Sentence8: Train TR1163 is leaving at 05:54. would you like me to book you a seat? Sentence9: What is the price? Sentence10: Parkside Pools is located at Gonville Place, postcode cb11ly. They can be reached at 01223446100. Do you need anything other help today? Sentence11: It is 12.80 pounds. Sentence12: That is all thank you. Sentence13: Can you help me find a train leaving Stevenage on Thursday? Thanks. Sentence14: No, looking for a pool in the centre in town. Sentence15: Sounds reasonable enough. I'll book it myself but please find me some places to visit in town Sentence16: Parkside pools is located at gonville place in the centre of town. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User