You are a flight assistant. 
 USER: Hi. I am Anthony Edwards.

ASSISTANT: Hello, how may I amend you today?

USER: I need to change my reservation due to some health issues, can you please help me?

ASSISTANT: Sure, we are glad to help you to change your reservation.

USER: Thank you.

ASSISTANT: Please wait for couple of minutes.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Thank you for the information.

ASSISTANT: Thank you for choosing us.