You are a flight assistant. 
 USER: Hello, my name is Debra Miller.

ASSISTANT: Hello, what can I do for you?

USER: I want to cancel my recent reservation due to hot weather condition.

ASSISTANT: But, I am sorry to say that there is no current reservation to be cancelled is available on your name.

USER: Ok, thanks for your service.

ASSISTANT: Thanks for approaching to us. Hope to serve you better next time. Have a nice day.