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: What is their postcode? Sentence2: Hello, i'm looking for a restaurant called river bar steakhouse and grill. Sentence3: Can you tell me more about The Tenpin? And can you give me a phone number and postcode? Sentence4: Their post code is cb58aq. Would you like me to make a reservation for you? Sentence5: Thank you for using our services. Have a great day. Sentence6: I can do that for you. Do you know when you'd like to leave or arrive so I can schedule the car? Sentence7: Not right now. Is there anywhere to go for entertainment in the south? Sentence8: The Tenpin can be reached at 08715501010. Their postcode is cb17dy. Is there anything else you needed? Sentence9: This is a modern european, cheap restaurant. It's in the centre, located at Quayside Off Bridge Street. Sentence10: Thanks. I will also need a taxi between The Tenpin and river bar steakhouse and grill. Sentence11: I would like to leave our attraction by 2:30 and head to the restaurant. Sentence12: There's the tenpin entertainment attraction in the south. Sentence13: Ok, you are all set look for a Yellow Lexus, if you need to contact the taxi, they can be reached at 07983066383 Sentence14: Great, thank you so much! That's all I will need for today! Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User