You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you aid me to amend my reservation due to emergency?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: Gary Lee here.

ASSISTANT: There is no reservation found under your name to change.

USER: No issue. Thank you for the help.

ASSISTANT: Thank you for opting us.