You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Donna Miller is my name.I want to cancel my reservation.

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Take your own time.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: That's not an issue.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your help in checking with the details.