You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, I am happy to help you. Please let me know your good name.

USER: Gary Lopez here.

ASSISTANT: Sorry, we did not find any active reservation on your name in our records.

USER: Thank you.

ASSISTANT: Thank you for contacting us.