Hello.
Hello, what help are you seeking for?
I am Timothy Collins.
Yes Collins, I am here to guide you.
I want to postpone my trip to Houston because of financial problems, so I want to change my existing reservation.
Ok, please give me a while I'll get back to you with your required details.
Ok.
You have no reservation on provided name to change your reservation.
That's ok, thank you for your information.
Thank you for choosing our services.