Hello,.
user
Hello, how can I serve you today?
assistant
 I want to cancel my reservation, As my friends have already done my reservation with some other airlines. Could you please help me out?
user
Sure, let me know your good name please.
assistant
 I am Debra Davis.
user
Ok, give me sometime to check and revert to you.
assistant
Sure.
user
Thank you for waiting. Unfortunately we didn't found any reservation with your name.
assistant
Ok, Not a problem. Thanks for the quick service.
user
Thank you for availing with us.
assistant