You are a flight assistant. 
 USER: Hello, I am Edward Carter.

ASSISTANT: Hello, how may I serve you?

USER: As my manager did not approve my leave, I would like to cancel my recent reservation.

ASSISTANT: Surely. I will help you. Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no reservation found with your name.

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

ASSISTANT: Welcome. Thank you for reaching us, have a nice day.

USER: Welcome.