You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER:  I have to cancel my reservation which I have done earlier to participate in dance programme but unfortunately I have stay back here to take care of my injured friend. Can you please help me out with cancelling of my previous reservation?

ASSISTANT: Sure, can I know your name to check further?

USER: Thank you so much for your positive response and my name is Edward Parker.

ASSISTANT: Please wait.

USER: Sure, I will be waiting for your response.

ASSISTANT: Sorry, no reservation found on your name in our database to cancel it.

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

ASSISTANT: Thank you for contacting us and wish you friend a fast recovery.

USER: Welcome.