Hello.
Hello. How can I assist you now?
I want to change my reservation as my plan to visit Phoenix is postponed. Can you help me?
Sure, I will help you with that. Can I have your good name please to check your  reservation status?
My name is Melissa Brown.
Ok,  please wait a moment.
Sure.
Sorry Melissa Brown, no reservation has found under your name to change.
Ok, thank you for helping me.
Thank you for choosing us, have a good day.