You are a flight assistant. 
 USER: Hello,. I am Anna Johnson.

ASSISTANT: Hello, how could I assist you?

USER: I want to cancel my reservation due to family meeting got postponed.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a reservation on your given name. Shall I proceed?

USER: Sure.

ASSISTANT: Your cancellation has been done. Thank you for reaching us.

USER: Thanks for your help.