You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: My plan to visit a function got postponed, will you help me to cancel my existing reservation?

ASSISTANT: Sure, we are here to help you with cancellation.

USER: Thanks.

ASSISTANT: Kindly mention your name to cancel it.

USER: Myself Pamela Evans.

ASSISTANT: Thanks for providing your name, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your specified name to cancel.

USER: Ok, no worries at all. Thank you.

ASSISTANT: Thank you for approaching us.