Hi.
Hello.
I am Gary Evans.
How may I be of your address?
 I want to attend science festival with my students at Charlotte. Can you help me in my booking?
Sure, can I know your connection  limit?
I am comfortable with any flight.
Kindly share your fare limit.
I can pay up to 5000.
Please let me know your source and destination points.
My airport codes are from DCA to CLT.
Could you please let me know your planned travelling dates?
My journey dates are from 08/06 to 08/08.
Pleas wait a moment.
Sure.
We found a South West airline matching your essential details with one connection and the fare is 100.
Proceed with my booking.
Your ticket is confirmed with the Southwest airline.
Thank you for your help.
You'e welcome.