Hello.
Hello, how may I aid you?
Due to some urgent office meeting, I am planning to change my existing reservation. Can you please help me for this?
Sure, I can help you. May I know your name?
Myself Ryan Johnson.
Please give me a moment to check your ticket status.
Sure.
Sorry Ryan Johnson, no reservation is available by your name.
Not a big deal, anyhow thank you very much for your kind information.
Thank you for choosing us.