You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, we are glad to help you. Can you please let me know your good name?

USER: Sharon Smith here.

ASSISTANT: Sorry, there is no active reservation on your name in our records.

USER: Thank you for the help.

ASSISTANT: Thank you for contacting us.