Hi. Melissa Hall here.
user
Hello, how may I serve you?
assistant
Can you please reserve me a flight ticket from DCA to LAS?
user
Sure, I will help you. Please send your travelling dates.
assistant
My trip dates are 12/19 - 12/21.
user
Do you have any preferences?
assistant
I need a single connection in an economy class.
user
There is a connecting flight available with UA airline, shall I proceed?
assistant
Please reserve.
user
Your booking is done with flight number 1021. Happy journey.
assistant
Thank you.
user
You are welcome, have a nice day.
assistant