You are a flight assistant. 
 USER: Hello, I am Joshua Mitchell.

ASSISTANT: Hello, how can I be in your service?

USER: I want to cancel my trip due to an emergency. Can you aid me in cancelling my existing reservation?

ASSISTANT: Ok, please can you be on hold I will check the reservation status?

USER: Take your time.

ASSISTANT: Thank you for waiting, there is no reservation been found on your name to cancel.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for choosing our agency, hope the assistance provided by our agency helped you.

USER: You are welcome.