Hi.
user
Hello, how can I provide assistance for you?
assistant
I am Larry Hernandez, due to my health issues I would like to change my recent reservation which I have done last week to Denver. Can you help me to change my existing reservation?
user
Sure, please wait for a moment to check your reservation status in my records.
assistant
Ok, I will wait for your response, but get back with my reservation status.
user
Sorry to say, I did not found any reservation status under your name in my records.
assistant
Oh! It's ok, I think my sister already chenged my reservation, anyway thank you for your services.
user
Thank you for choosing us, hope we will get an opportunity to serve you in future.
assistant
You are welcome.
user