You are a flight assistant. 
 USER: Hello. Kenneth Young on this end.

ASSISTANT: Hello, how may I aid you?

USER: I would like to change my reservation details, can you please help me out?

ASSISTANT: Sure, I am here to help you. Please wait a moment I will check your details and proceed further.

USER: Ok, please check for my reservation and revert me with available status.

ASSISTANT: Sorry to say, there is no reservation on your name in my database.

USER: Ok, no issues with it. Anyways, thank you for checking.

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

USER: You are most welcome.