Hello.
user
Hello. How may I help you today?
assistant
I would like to change my existing reservation, which is done recently. Can you please help me out?
user
Ok, I am here to help you with that.
assistant
Thank you for considering my request. Myself Brenda Collins.
user
May I know your good name?
assistant
Brenda Collins here.
user
I have found the reservation.May I know your airport codes?
assistant
Sure, my new preferable airport codes are IAH and AUS.
user
Ok, can I know your travelling dates?
assistant
My new planned travel dates are from Mar 18 to Mar 20.
user
Please wait for a minute.
assistant
Sure, I will wait for your response.
user
Sorry to say that, there are no flights available based on your travelling dates.
assistant
That's ok, no problem. Thank you for your service.
user
Thank you for approaching us.
assistant