Instructions: 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. 
 customer: I am Stephanie lopez. 
 agent: How may I help you? 
 customer: Due to emergency I need to cancel my recent reservation, Can you please help me with that? 
 agent: Please wait for a moment. 
 customer: Sure. 
 agent: Sorry, there is no reservation found basis on your details. 
 customer: Ok, no problem. Thanks for approaching us.
Output:
no_reservation