You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Please help me in changing my recent reservation.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please provide your good name.

USER: My name is Mark Lee.

ASSISTANT: Please give me a minute, I will check the status and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, No reservation was found on your given name to change it.

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

ASSISTANT: Thank you for approaching us.