You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of help are you expecting from our side?

USER: Can you please check any active reservation on the name of Kenneth Turner? If you find any reservation, please change my travelling dates.

ASSISTANT: Sure, we are here to make your work easy.

USER: Thank you.

ASSISTANT: Please allow me a moment to check the previous reservation in our database.

USER: Sure, take your own time.

ASSISTANT: Thanks for your valuable time. Sorry, we hardly tried to change your reservation, but no reservation found on your name.

USER: No problem, thanks for your kind service.

ASSISTANT: Thank you for opting us.