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: May I ask you for more information regarding the train? Sentence2: I'll be going to London Liverpool street on Sunday. Sentence3: TR2141 leaves Cambridge on Sunday at 13:59 and arrives at London Liverpool Street at 15:57. Are you interested in me booking this for you? Sentence4: Can you pick one and get me the postcode, address on phone number? Sentence5: I also need a train departing from cambridge and should leave after 12:30. Sentence6: Any specific area in mind? Sentence7: There are several colleges in the centre where you can hang out. Most of them have free entrance fees. Is there anything else I can help you with? Sentence8: Yes, that sounds ideal. Will you please book for 8 passengers, please. Sentence9: I need to find a place to hang out at a college in Cambridge. Sentence10: No thank you, you have been helpful. Sentence11: I recommend downing college located on regent street. The postcode is cb21dq and their phone number is 01223334860. Anything else I can help you with? Sentence12: Your train has been booked. The total fee is 106.24 GBP payable at the station. Your reference number is ZAPBD0P6 . Can I assist you any further? Sentence13: In the centre would be great! Sentence14: I'm happy to hear that. Thank you for using the Cambridge TownInfo centre. Have a wonderful day. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System