You will be given a definition of a task first, then some input of the task.
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: Hi. 
 agent: Hello. How can I help you? 
 customer: My friend want to cancel her reservation because she got some urgent work at her home, can you please help me to cancel her reservation? 
 agent: Sure, I will help you. Please wait a while. 
 customer: Ok. 
 agent: May I know her name please? 
 customer: Sure, her name is Nicole Garcia. 
 agent: There is no reservation found on her name. 
 customer: That's fine, thank you for checking. 
 agent: Thank you for reaching us.
Output:
no_reservation