Hello.
user
Hello. How may I help you out?
assistant
I would like to change the destination airport code in the existing reservation. Can you please help me to change the ticket details?
user
Sure, I will help you in changing the ticket. Can you please provide the name to check the reservation status?
assistant
Thank you. Sure,  I am Pamela Brown.
user
Sorry, I could not find any reservation on your name.
assistant
That's not an issue. Thank you for your support.
user
Thank you for reaching us.
assistant
Most welcome.
user