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. 
 agent: Hello, how may I support you today? 
 customer: Due to heavy rain, I want to cancel my recent reservation. Can you help me? 
 agent: Sure, we are glad to help you. 
 customer: Thank you. 
 agent: May I know your name please? 
 customer: Rebecca Johnson here. 
 agent: Please wait a minute. 
 customer: Ok. 
 agent: Sorry, there is no active reservation on your name to cancel. 
 customer: No issue, Thanks for the information. 
 agent: Thank you for contacting us.
no_reservation