Hello, I am Stephen Baker.
user
Hello, how may I oblige you today?
assistant
I need to change my travelling dates, due to postpone of my business trip. Could you please help me with modifying an existing reservation?
user
Sure, We are ecstatic to help you. Can you please wait for a moment, I will check with your reservation.
assistant
Sure.
user
We are glad to inform you that, we found  a reservation with your name. Can you please share your journey dates?
assistant
Sure, 04/22 and 04/24 are my travelling dates.
user
Kindly assign your boarding and landing airport codes?
assistant
Sure, I need to board from Austin, TX-AUS to Washington, DC-DCA.
user
Ok, please wait for a while.
assistant
Sure.
user
We found a connected flight with Delta airlines of 1006 flight number and the fare is 100. Shall I proceed to booking?
assistant
Sure, please proceed with booking.
user
Your ticket has been reserved.
assistant
Thank you for your service.
user
Thank you for choosing us. Have a safe journey.
assistant