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, I am Scott Garcia. 
 agent: Hello, how can I help you? 
 customer: As my plan for visiting Denver was cancelled, So I want to cancel my  recent reservation. Would you please help me out? 
 agent: Sure, I am happy to help you. Please be on hold, I will check the status and revert you. 
 customer: Sure. 
 agent: Thank you for your time, There is no reservation found on your name. 
 customer: No problem, thank you for the information. 
 agent: Thank you for contacting us.
Output:
no_reservation