Hello.
user
Hello.
assistant
My name is Melissa Moore.
user
How may I help you? Nice to meet you Melissa.
assistant
Due to health issue, I need to change my existing reservation. Please help me in that.
user
Sure, please wait for a moment.
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
No problem, thanks for your information.
user
Thank you.
assistant