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 also help me find a train? Sentence2: i recommend old school architecture. its in trinity l;ane. can i give you the address Sentence3: What time would you like to arrive by and what time would you like to depart by? Sentence4: I'm interested in places to in the centre. Sentence5: I just need the train ID and the departure and travel times please. Sentence6: Yes and also the entrance fee and phone number. Sentence7: Absolutely! What day would you like to travel and where are you departing from? Sentence8: Okay. Thank you for your information. Sentence9: admission is free and the phone number is 01223332320 Sentence10: Would you like me to book it for you? Sentence11: I have that you are going to Ely Thursday by 8pm. Where are you departing from and when would like to arrive? Sentence12: Thursday and going to Ely! Sentence13: I am departing for Bishops Stortford. I need to arrive by 10:15. No departure preference. Sentence14: You are welcome. Thank you for calling. Sentence15: Yes I have the TR1923 that leaves Cambridge at 09:50 and arrives in Ely by 10:07. Sentence16: I would like to leave pretty early so I can spend the day. I would also like to have dinner there so sometime after 8pm. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User