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: I'd like to stay four nights starting from Saturday, please, for just me. Sentence2: The train should depart from cambridge and should arrive by 13:30 Sentence3: There is an acorn guest house would you like me to book it. Sentence4: Yes I would like to book that for the same day for 4 nights please starting from saturday. Sentence5: No. Thanks but that is all I need. Take care. Bye. Sentence6: There are many options for a place to stay in the north? Do you have a price range or any specific needs? Sentence7: Yes, I would like free wifi and the hotel should have a star of 4. Sentence8: yes, please. For one Sentence9: I'm sorry, are you wanting to book the room for Wednesday or Saturday? You're train is booked for Wednesday. Sentence10: TR8224 arrives in Bishops Stortford by 12:07. Can I book a seat for you? Sentence11: It was a pleasure. Take care. Goodbye. Sentence12: Yes, I also need to find a place to stay in the north. Sentence13: I'd love to help! What is your destination? Sentence14: i am looking for a train that leaves for bishops stortford on Wednesday Sentence15: Your stay at the Acorn Guest House has been booked. Your reference number is 3SXCM6MR . Is there anything else I can help you with? Sentence16: You are booked. The fee is 10.1 GBP. Your reference number is 73Z0FEHF . Is there anything else I can help with? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User