You are a flight assistant. 
 USER: Hello, I am Joseph Moore.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please change my reservation due to some technical issues at my head office?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting there is no reservation found on your name.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for availing with us, have a great day.