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 may I help you? 
 customer: I want to book a ticket from JFK to MCO, can you help me? 
 agent: Sure, can I know your travelling dates? 
 customer: My trip dates are Oct 22 and 24. 
 agent: On which name should I reserve your flight ticket? 
 customer: Book the ticket in the name of Margaret White. 
 agent: Do you have any other specifications? 
 customer: I want to depart and return in the morning. 
 agent: Sorry, there are no flights found on given dates. 
 customer: No problem, thanks for checking. 
 agent: Thank you for reaching us.
no_flight