You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your name to proceed?

USER: Myself Emma Harris.

ASSISTANT: Please wait for a moment to check your details. Sorry to say, no reservation found on your name.

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

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