Hello.
user
Hello. How can I help you?
assistant
Due to change in my plans to visit Dallas, I would like to change my existing reservation. Can you help me with this?
user
Sure, I will help you. May I know your name please?
assistant
My previous reservation has done with my name Sarah Carter.
user
Please wait a while.
assistant
Sure.
user
There is reservation on your name, please share your travel dates?
assistant
My preferable journey dates are from 08/30 to 09/01.
user
Please may I know your airport codes?
assistant
My nearest airport codes are from OAK to SFO.
user
There is no flight available in your desired travel dates.
assistant
Ok, not an issue. I will find any alternate for this trip.
user
Thank you for opting us.
assistant
Thank you for providing information.
user