Hello.
user
Hello, how may I aid you?
assistant
I am Paul Harris, planning to visit Las Vegas. Can you please book me the ticket from DCA to LAS?
user
Sure,  I am here to help you out. Please provide me your trip dates.
assistant
My planned dates of journey are from 05/26 to 05/28.
user
Here is a direct flight with airfare of 100 in 1029 AA airlines, can I proceed with it?
assistant
Please book my ticket with this airlines.
user
Your ticket has been booked.
assistant
Thank you for booking my ticket.
user
Thank you for reaching us.
assistant