Hello.
Hello. How may I aid you?
 My name is Kenneth Hernandez. I would like to book a ticket from IAH to DFW, to attend a conference.
Please share your trip dates.
My itinerary travel dates are June 28 and June 30.
May I know your specifications?
Yes,  I would like to board on single connection flight where, depart time should be in the afternoon.
Please wait for a while.
Sure, take your time.
Sorry Kenneth Hernandez, no airlines is providing service in the afternoon.
No problem, thank you for the information.
Thank you for choosing us.