Hello.
user
Hello, how may I best serve you today?
assistant
Can you please book a ticket from DCA to IAH to meet my sister?
user
Sure, please share me your trip dates.
assistant
My journey dates are Nov 8 and Nov 10.
user
Do you need direct flight or connecting flight?
assistant
I am comfortable with any connection.
user
For booking, we need your good name. Please mention it.
assistant
I am Donald Clark.
user
May I know your class preferences?
assistant
I am comfortable with any class.
user
We found  a AA airline and 1007 is flight number with a fare of 100. Shall I proceed?
assistant
Ok, please proceed.
user
Your ticket is confirmed with an economy class.
assistant
Thank you.
user
Thank you for approaching us.
assistant