You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I just want to cancel my recently done reservation.

ASSISTANT: Ok, can you please provide your name?

USER: Sure, my name is Elizabeth Davis.

ASSISTANT: Ok, wait a moment meanwhile I'll check the details of your reservation.

USER: Ok.

ASSISTANT: Sorry, cannot found any reservation on your name.

USER: No problem, thank you.

ASSISTANT: Thanks for approaching us. Have a nice day!.