Hi. I am Larry Smith.
user
Hello, how best I can serve you at this moment?
assistant
I want to change my existing reservation due to postpone of my exams, so can you please help me with this?
user
Sure, we are here to help you.
assistant
Thank you.
user
Please be on hold for some time.
assistant
Sure.
user
We found a reservation on your name, can you please mention your journey dates?
assistant
My journey dates are Jan 13 and Jan 15.
user
May I know your boarding and landing airport codes?
assistant
I am heading to DCA from OAK.
user
Do you prefer any halt in between journey?
assistant
Yes, I prefer a halt.
user
Is there any more specification in your journey?
assistant
Please book a ticket in a business class.
user
Sorry we did not find any flights matching your preferences.
assistant
Not a problem, thank you for the information.
user
Thank you for choosing us.
assistant