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

ASSISTANT: Hello. How can I aid you?

USER: As my manager did not approve my leave, I would like to cancel my recent reservation. Can you aid me with this?

ASSISTANT: Sure, I am here to help you in cancelling your reservation. Please allow me a moment to check for your status.

USER: Thank you.

ASSISTANT: Thank you for waiting. Sorry to say, there is no active reservation have been found under your name in our database to cancel it.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.