Hi.
user
Hello. How may I assist you?
assistant
Can you please help me to change my existing reservation?
user
Sure. May I know your name please?
assistant
I am Janet Thomas.
user
Please wait.
assistant
Sure.
user
Thanks for waiting. But I am sorry to say that there is no flight reservation on your name to change it.
assistant
Not a problem, thank you.
user
Thank you.
assistant