You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to cancel my reservation, As I need to visit some other place on the same day of my journey. Can you help me out?

ASSISTANT: Sure, we are gleeful to help you for cancellation.

USER: Thank you.

ASSISTANT: May I know your name to check your details in our database?

USER: Anna Johnson, is my name.

ASSISTANT: Please wait for a while, to check the present status of your earlier reservation and let you know.

USER: Sure.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, no problem. Thanks for your response.

ASSISTANT: Thank you for reaching us. Have a blissful day!.