You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I assist you today?

USER: I am Debra Martin. I want to cancel my recent reservation as my friend's marriage has been cancelled.

ASSISTANT: Ok.

USER: Help me in cancelling my reservation.

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry Martin, there is no active reservation found on your name.

USER: Its ok, I think it has been cancelled my friend's. Any way thank you for your effort.

ASSISTANT: Thank you for availing us.