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

customer: Hello. I am Brian Perez. 
 agent: Hello, how may I serve you today? 
 customer: I am planning to visit Orlando best locations for my movie shooting. Can you book me a ticket from LAX to MCO? 
 agent: Sure, please share me your trip dates. 
 customer: I would start on 02/17 and return on 02/19. 
 agent: Do you need any specifications? 
 customer: Yes, I need a stop over within my route to MCO. 
 agent: Sure, please wait for a while. 
 customer: Sure. 
 agent: Sorry to say that, there are no flights available on the routes of your journey. 
 customer: That's Ok, thanks for your response. 
 agent: Thank you for reaching us.
no_flight