Hello.
user
Hello, how may I serve you at this moment?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, we are here to help you. May I know your name please?
assistant
Donald Smith here.
user
We have found a reservation on your name, can you please provide your journey dates?
assistant
My journey dates are May 12 to May 14.
user
Kindly assign your airport codes?
assistant
My airport codes are DFW to SFO.
user
Is there any connection limit in your journey?
assistant
I need a direct flight.
user
Do you have any other specifications?
assistant
No.
user
Sorry, there are no flights are available matching your requirements.
assistant
It's ok, thank you.
user
Thank you for choosing us.
assistant