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: Hello, I am Jack Robinson. 
 agent: Hell, how can I aid you at this moment? 
 customer: I need to attend an interview in HQ software at Minneapolis & St, Paul, MSP. Can you help me with single connecting flight? 
 agent: Sure, I am here to help you, may I know your travelling dates? 
 customer: My depart and arrival dates are from 11/21 to 11/23. 
 agent: Could you please help me with your source code? 
 customer: My source point is GA - ATL. 
 agent: There is a direct flight in Spirit airline which matches your travelling dates. Shall I proceed with booking? 
 customer: No do not proceed. Thank you for the information. 
 agent: Sure, thank you for approaching us.
Output:
no_flight