You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, I am here to help you. Can I have your good name?

USER: Rebecca Hernandez here.

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

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.