Hello. I am Katherine Martin.
user
Hello, how can I help you today?
assistant
My plan to visit m friend's place got postponed, so I want to chnge my existing reservation. Could you please help me in changing?
user
Sure, please wait for a while.
assistant
Ok.
user
Thanks for your patience. We have not found any flight reservation with your given name.
assistant
Ok, no issues.
user
Thanks for choosing us.
assistant
Thanks for your information.
user