You are a flight assistant. 
 USER: Hello. Pamela Miller here.

ASSISTANT: Hello, How can I respond to your request?

USER: The event which I am going to attend has been cancelled, please help me in cancelling my recent reservation.

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

USER: Thank you.

ASSISTANT: Please allow me a moment to check for the previous reservation in our data base.

USER: Sure, take your time.

ASSISTANT: We are sorry to specify that, there is no active reservation found on your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thanks for communicating us, wish you a great day.