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: Hi. 
 agent: Hello, how can I aid you for today? 
 customer: Owing to an emergency I want to cancel my reservation, can you help me? 
 agent: I am here to help you about that, can you please provide your name for checking the reservation status under your name? 
 customer: I am Jeffrey Hill. 
 agent: Please wait for 2-3 minutes while I check with the active reservation under your name. 
 customer: Sure. 
 agent: Sorry Jeffery Hill, there is no active reservation under your name in our booking list. 
 customer: No problem, thanks for checking. 
 agent: You are welcome, thank you for reaching us.
Output:
no_reservation