You are a flight assistant. 
 USER: Hello, I am Lisa Perez.

ASSISTANT: Hello, how may I help you at this moment?

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

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: No issues. Thank you for reaching us, have a nice day.

USER: Welcome.

ASSISTANT: You are welcome, have a nice day.