You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER:  Due to some financial issues, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Ok, could I have your name please?

USER: Sarah Garcia here.

ASSISTANT: Ok, please allow me  a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation with your name in our portal to cancel further.

USER: No problem, Thanks for the information.

ASSISTANT: You are welcome, have a great day.