Hi.
user
Hello, how may I aid you?
assistant
I am Emily Campbell, please help me to change my existing reservation because I gave wrong airport codes?
user
Sure, I will help you with the change of flight reservation.
assistant
Thank you.
user
Thanks of waiting Emily. But I am sorry to say that there is no flight reservation on your name to change it.
assistant
Oh! It's ok, no problem thank you for your services.
user
Thank you.
assistant