You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER:  I am Dorothy Carter want to cancel my reservation owing an emergency. Can you help me in cancelling?

ASSISTANT: Sure, I am glad to help you in cancelling your reservation.

USER: Thank you.

ASSISTANT: Please allow me a moment to check for your previous reservation status is active or not.

USER:  Ok.

ASSISTANT: Thank you for waiting. Sorry to say, there is no active reservation have been found under your name in our database to cancel it.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.