Hello.
user
Hello. How may I aid you?
assistant
Due to some health issues, I would like to change my existing reservation. Please help me out.
user
Sure, I will help you with that.
assistant
Thank you.
user
May I know your name please?
assistant
My name is Christopher Young.
user
Thanks for waiting patiently. But I regret to inform you that there is no flight reservation on your name to change it.
assistant
Ok, no problem. Thank you for your information.
user
Thank you.
assistant