You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Baker.

ASSISTANT: How can I help you today?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I am gleeful to help you with that.

USER: Thank you.

ASSISTANT: Please hold on for a while.

USER: Sure.

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

USER: No problem, thank you for the information.

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