Detailed Instructions: In this task, you are given a conversation between a flight agent and the customer. You are given 4 options and you need to select the goal of the conversation. It is provided as part of customer's context, which has to be one of the following: `book`: Make a new reservation, `cancel`: Cancel an existing reservation, `no_flight`: No flight found for the customer's preference, `no_reservation`: No reservation / No change / No cancellation was made in the conversation, mostly enquiring details
Q: customer: Hello. 
 agent: Hello, how can I help you? 
 customer: Myself Samantha Turner. I want to travel from CLT to JFK locations, can you please book a flight ticket? 
 agent: Please share your desired travel dates? 
 customer: My travelling dates are from 11/28 and 11/30. Make sure that I want a direct flight. 
 agent: There is no flight with connection limit 0. 
 customer: It's ok. Thank you for the information. 
 agent: Thank you for choosing us. Have a nice day.
A:
no_flight