Hello.
Hello, how may I assist you at present?
I would like to change my existing reservation, can you help me in that?
Sure, I am here to help you to change it. Can I have your name please?
Sure, the ticket has been reserved on the name Nancy Walker.
Ok, please wait for a while.
Sure, I will wait for your response.
Sorry to say that, there was no reservation found on your name to change it.
That's ok, no problem. Thank you for the information.
Thank you for availing us.