Hi, I am David Edwards.
user
Hello, how can I help you today?
assistant
My plan to visit my friend's place got postponed, could you please help me in changing my existing reservation.
user
Please wait a moment, I will check and get back to you.
assistant
Ok.
user
We have not found any flight reservation with your given name.
assistant
Ok not an Issue. Thank you for your help.
user
Thanks for choosing us.
assistant