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