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 help me find a restaurant called "Cotto"? Sentence2: Thanks, I also need a train that leaves after 20:15 on Wednesday. Sentence3: It's all booked, reference is 824HFY0Q Sentence4: Yes, and also the postcode. Sentence5: Train ID TR8533 is available to leave at 21:50 and arrive by 22:07. Would you like to book this now? Sentence6: Thank you. Have a great day. Goodbye Sentence7: Yes. Cotto is located at 183 East Road City. Would you like the phone number? Sentence8: Before I book, I just want to confirm you only need one ticket? Sentence9: Great that's all I need, thank you. Sentence10: There are 546 trains leaving after 20:15. Where would you like to leave from and where do you want to go? Sentence11: Yes, that's right. It's just for me. Sentence12: I am leaving from cambridge and heading to ely. Sentence13: Yes, please. Thank you. Sentence14: Phone number is 01223302010. Postcode is cb11bg. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User