You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am David Miller, I want to cancel my recent reservation, help me in cancelling my recent reservation.

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: No issues, thank you.

ASSISTANT: Thank you.