Hello.
user
Hello. How may I help you?
assistant
I need to change my reservation as  planned trip got postponed due to some financial issues. So please help me with that.
user
Sure, I am here to help you. Can I know your name please?
assistant
Thank you for accepting my request. Please check the reservation with my name Amy Walker.
user
Ok, please hold on for a minute.
assistant
Sure, take your time.
user
Sorry to inform you that, there is no reservation found under your name.
assistant
Oh! It may not be booked properly while booking. Anyway, thank you for your time.
user
You are most welcome. Thank you for consulting us.
assistant
Most welcome.
user