Definition: 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
Input: customer: Hello. 
 agent: Hello, how may I serve you today? 
 customer: Due to heavy rain, I want to cancel my reservation. Can you help me? 
 agent: Sure, may I know your name please? 
 customer: Joshua Martinez here. 
 agent: Ok, please wait for a moment. 
 customer: Sure. 
 agent: Thanks for waiting, no reservation found with your name to cancel. 
 customer: No problem, Thanks for the information. 
 agent: Thanks for availing us, have a nice day.
Output:
no_reservation