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 recommend train TR6034. The cost is 30.24 pounds and it will get you there by 20:06. Would you like me to book it for you? Sentence2: I also need a train on saturday that departs from cambridge. Sentence3: What is your destination? Sentence4: Thank you and have a great day. Sentence5: I'm heading to Leicester. I need to get there by 21:00. Sentence6: All 8 have free parking. If you're looking for a guesthouse, might I suggest alexander bed and breakfast? Sentence7: Sure, the Allenbell is a guesthouse with free internet. The phone number is 01223210353. Can I be of further assistance? Sentence8: I need a cheap four star room. Sentence9: That is all I need, thank you. Sentence10: Booking for TR6034 was successful for one person. Your total fee is 30.24 GBP payable at the station and your reference number is A1E9MYGC . Sentence11: There are 7 guesthouses and 1 hotel meeting your needs. Do you have an area preference? Sentence12: No but I need it to include free parking. Sentence13: Yes, they sure do. Do you prefer a hotel, or a guesthouse? Sentence14: Can you suggest one for me? I need the hotel type, phone number, and whether it has internet or not. Sentence15: If I could get the train that arrives closest to 21:00 please. Sentence16: Yes that would be great if you could book train TR6034 for me. Thank you. Sentence17: We have 15 trains going to leicester from cambridge arriving by 21:00. Was there a certain time you wanted to leave at? Sentence18: Do all 8 places have the internet? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System