You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you for the day?

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

ASSISTANT: Sure, I ma gleeful to help you with that cancelling reservation. May I know your name please?

USER: Thank you. please check my  reservation with my name Alexander Brown.

ASSISTANT: Please wait for a while, let me check your previous reservation status.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, but I am sorry to say that, there is no active reservation found on your name in our database to cancel it.

USER: Oh! It may not be booked properly due to some technical issues while booking. Anyway, thank you for your time.

ASSISTANT: Most welcome, thank you for reaching us. Have a great day.

USER: Most welcome.