You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Due to deal with an emergency case, I am unable to travel the planned trip. Can you please help me with cancelling my flight ticket?

ASSISTANT: Sure, I am ready to help you. May I know your name?

USER: Thank you and my name is Kenneth Nelson.

ASSISTANT: Sorry, there are no reservation found on your name.

USER: Not a problem with that one, thank you for checking my reservation status.

ASSISTANT: Thank you for opting us.