Hello, I am Timothy Walker.
Hello, How may I help you?
 I want to make a round trip to Houston, TX-IAH, Can you help me with it?
Sure, Please provide me your journey dates.
My journey dates are from 05/20 to 05/22.
We found a flight with fare 100 in single connection, Shall I proceed?
Thanks for the details, you can proceed with booking.
Your airline is UA, Flight number is 1002.
Thanks for the service.
Thank you for choosing us, Have a nice day.