You will be given a definition of a task first, then some input of the task.
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 assist you today? 
 customer: I want to visit DTW, can you help me to book flight ticket from LGA? 
 agent: Sure, can you please share your journey dates? 
 customer: My journey dates to travel are Oct 8 and Oct 10. 
 agent: Do you have any connection limit? 
 customer: I want maximum connection of one flight. 
 agent: Let me know your airline preference? 
 customer: I do not have any airline preference. 
 agent: Any other requirements to be met? 
 customer: No, thank you for asking. 
 agent: May I know your name? 
 customer: Myself Angela White. 
 agent: Sorry, there are no flights found with your given details. 
 customer: Ok, not a problem. Thank you. 
 agent: Thank you for reaching us.
Output:
no_flight