You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: How can I cancel the reservation which I had dine recently?

ASSISTANT: Sure, we are here to help you.

USER: My name is Melissa Thompson.

ASSISTANT: Please wait for a while, I will check the status.

USER: Ok, please take your own time.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name for cancel it.

USER: That is ok, thank you for the help.

ASSISTANT: Thanks for reaching us, have a nice day.