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: That will be all for today thanks ! Sentence2: Yes please book a seat and send me a reference number. Sentence3: Does it leave on Sunday? Sentence4: I'd recommend the acorn guest house. It has free wifi and parking. Would you like to book a room? Sentence5: I have booked you a seat and the reference number is : 6IJ7W2BN . Sentence6: Awesome. Thank you for using the Cambridge TownInfo centre. Have a great day Sentence7: 01223353888 is the number, the post code is cb41da. Can I help with anything else today? Sentence8: Thanks so much. Can you also find me a place to stay? Sentence9: No that's ok. Can I just get the phone number and postcode? Sentence10: Definitely - we have 33 great places to stay in town. If you can give me some specific requirements, I can narrow it down to the perfect place for you. Sentence11: Can you please find me a train that leaves to bishops shortford? Can it also arrive before 10:45 too? Thankyou for your time. Sentence12: No, that one leaves on Friday. TR9219 leaves Sunday at 5:29 and arrives in Cambridge by 6:07. Would you like to book a seat? Sentence13: I would like a 4 star moderately priced guesthouse in the north. Sentence14: I have the TR2061 that arrives at 06:07. Will that work? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System