Hello.
user
Hello. How may I help you now?
assistant
Can you help me to book a direct flight from DCA to LAS?
user
Sure, I am oblige to help you with flight ticket booking and may I know your travelling dates?
assistant
My travelling dates are 07 and 09 of Sep.
user
For booking the flight ticket, may I know your name please?
assistant
I am Robert Baker.
user
Do you have any other specifications for your journey?
assistant
I would like to depart in the evening.
user
I have found a flight on your requirements in Hawaiian airlines with a fare of 100, do you want me to proceed with booking?
assistant
Please proceed with the booking.
user
Your flight ticket is booked in 1009 flight which will depart at 20:00 PM.
assistant
Thanks for helping me.
user
You are welcome and  have a happy journey.
assistant