You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

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

USER: Michael Hernandez here.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Michael Hernandez, there is no active reservation found under your name to do modifications in that.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.