Hi.
user
Hello. May I know your name?
assistant
I am Alexander Nelson.
user
Nice to meet you Alexander Nelson, how may I help you?
assistant
I have to attend a meeting at White House, please book a ticket for me.
user
Sure, can I know your travelling details please?
assistant
Sure, I will go on 03/04 and return on 03/06. My origin airport code is DCA and I will be land on IAD.
user
There is  a flight available with us with your provided details from Frontier airline with flight number 1024. Do you like to proceed?
assistant
Please proceed.
user
Your ticket has booked.
assistant
Thank you for your help.
user
Most welcome.
assistant