You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

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

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Please, share me your good name to check your reservation status.

USER: Charles Adams here.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, we have not found any active reservation on your name in our records.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.