Hello.
Hello, how can I be your helping hand today?
I have reserved a ticket last week to meet my friend but suddenly my trip got postponed due to some issues. So please help me with changing my reservation.
Sure, I am here to assist you.
Thank you.
On whose name, you have reserved the ticket earlier?
I have reserved my ticket with my name  Ashley Anderson.
Ok, please allow me a few minutes to check the reservation list.
Sure, I will wait for your response.
Thank you for waiting, no reservation was found on your name to change.
Oh! It may not be booked properly due to some technical issues. Anyway, thank you for your time.
Thank you for reaching us.