You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: I need to change my reservation as my plan to go for an adventure trip got postponed. Can you help me?

ASSISTANT: Sure, I will help you with that. May I know your good name?

USER: I am Laura Moore.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: Ok fine, thanks for your response.

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