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: Hi. 
 agent: Hello, how can I aid you for today? 
 customer: Can you find a flight for me from MCO to ATL? 
 agent: I am here to help you about that. Can you please provide your planned dates of journey? 
 customer: Ok, my trip dates are from July 22 to 24. 
 agent: Do you prefer a connecting flight or a direct flight for this trip? 
 customer: I need a direct flight. 
 agent: Please provide your name for reservation purpose. 
 customer: Sure, I am Katherine Brown. 
 agent: Sorry Katherine Brown, there are no flights which travels to your region on your planned dates of journey. 
 customer: That's ok, thanks for checking. 
 agent: You are welcome, thank you for reaching us.
no_flight