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

Q: customer: Hello. 
 agent: Hello, how may I help you today? 
 customer: I am Amanda Jackson. 
 agent: Ok. 
 customer: I want to cancel my recent reservation, due to ill health. Can you please help me? 
 agent: Sure, we are here to help you. Please wait for a while. 
 customer: Sure, take your own time. 
 agent: Thank you for waiting, there is no active reservation found on your name. 
 customer: That's ok, thank you for checking. 
 agent: Thank you for reaching us.

A: no_reservation
****
Q: customer: Hi. 
 agent: Hello. How can I help you at this moment? 
 customer: I want to change my existing reservation which is done recently due to some health issues, can you please help me? 
 agent: Sure, I will aid you in changing your reservation. 
 customer: Thank you for considering my request. 
 agent: May I know your name please. 
 customer: Sure, my name is Joshua Green. 
 agent: Sorry to say this, no reservation found on your name in our database. 
 customer: Ok, no problem. Thank you for your service. 
 agent: Thank you for reaching us.

A: no_reservation
****
Q: customer: Hi. 
 agent: Hello. 
 customer: Dorothy Green here. 
 agent: How can I help you? 
 customer: Can you please help me in cancelling my recent reservation? As I'm no more interested to do journey right now. 
 agent: Sure, just a moment please? 
 customer: Sure, take your own time. 
 agent: I am sorry no reservation found on your name. Thank you for choosing us. 
 customer: That's ok, thank you for giving the information.

A:
no_reservation
****