You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: My plan to visit a function got postponed, so I need to cancel my recent reservation. Will you help me in that?

ASSISTANT: Sure, I will help you out. Can I have your name please?

USER: Sure, my name is Charles Martin.

ASSISTANT: Thanks for your name, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found based on your name to cancel.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.