Hello.
user
Hello.
assistant
I am Donna Hill.
user
How can I help you?
assistant
I want to change my existing reservation, due to some health issue. Can you please help me?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Give me a moment.
assistant
Ok, take your time.
user
Sorry, there is no reservation found on your name to change your reservation.
assistant
That's ok, thank you for your information.
user
Welcome. Have a safe flight.
assistant