You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: Donna Anderson is my name.

ASSISTANT: Ok, How can I assist you?

USER: I am unable to travel to airport to board my flight due to severe accident in my way to airport. Can you assist me with cancellation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the status and revert to you.

USER: Sure.

ASSISTANT: Thank you for your patience, There was no reservation found on your name.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for choosing us.