Hello.
Hello, do you need any help from us?
Can you please help me in changing my existing reservation?
Sure, could I have your name please?
My previous reservation has done with the name Deborah Thompson.
Ok, please allow me a moment.
Sure, take your own time.
I have found your reservation, can you please tell me your trip dates?
My preferable journey dates are Dec 18 and Dec 20.
Ok, could you please share your origin and destination airport codes?
My airport codes of journey are IAH and DTW.
Ok, please allow me a moment.
Sure.
Sorry, there is no flight on your requested travelling dates.
Ok, not an issue. Thank you for providing information.
You are welcome, have a great day.