You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I am Donald Edwards. Can you help me to amend my reservation due to an emergency?

ASSISTANT: Sure, please wait for a moment.

USER: Take your time.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for opting us.