You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Laura Young.

ASSISTANT: How can I help you?

USER: Would it be possible to change my reservation to new travel dates?

ASSISTANT: Please wait a while.

USER: Sure, take your own time.

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

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for opting us.