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: Can you give me some information on trinity college please? Sentence2: only 17 mins and 4.4 GBP payable at the station Sentence3: I'm not sure. Would you like me to give you the phone number? They might have more information on that. Sentence4: Can you tell me what time you want to leave or arrive by? Sentence5: Sure thing! Trinity College is located on Trinity Street in Centre with a postcode of cb21tq. Would you like more information today? Sentence6: That sounds good. What's the travel time and price for that one? Sentence7: Yes, again. That is all I need. Thanks. Sentence8: Okay! How about the 9:50 train? That's the latest one, and it arrives at 10:07. Sentence9: Great! Thanks! Is that just a college or is there any other type of attraction there? Sentence10: Thank you so much. That's all I need today. Sentence11: Thank you for using our services. Have we met all of your needs today? Sentence12: I am leaving from Cambridge and will be traveling Wednesday. Sentence13: Where will you travel from? Sentence14: Yes, can you please get that for me. Thank you Sentence15: The phone number for Trinity College is 01223338400. Can I help you with anything else? Sentence16: Thank you for calling Cambridge TownInfo centre! It's been a pleasure to help you explore our city today! Sentence17: I need to be there by 11:15. Sentence18: I also need a train to Ely. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User