You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how may I assist you?

USER: I need to cancel my reservation due to my planned event got cancelled. So please help me with cancelling my reservation.

ASSISTANT: Sure, I will definitely help you to cancel your previous reservation.

USER: Thank you for accepting my request.

ASSISTANT: May I know your full name please?

USER: Sure, please check the reservation with my name Kenneth Williams.

ASSISTANT: Ok, please give me a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to intimate you that, there is no active reservation found with your name in our database to cancel.

USER: I will check my mail once again for confirmation of my ticket reservation. Anyway, thank you for your valuable time.

ASSISTANT: My pleasure. Thank you for contacting us.

USER: Most welcome.