Hi, I am Helen Moore.
Hello, How can I help you?
 I have never had an experience of flight journey, so I want to go to my grandmother's home in Washington, DC - IAD. Can you help me to book a flight ticket from TX - HOU?
Sure. Can you provide your travelling dates?
I would like to fly on 11/27 and return at 11/29. I have a price limit of 200.
There is a flight 1000 with Delta airline and price 100 with a connection.
Ok, please reserve with that airline.
Ok, Your ticket has been reserved.
I am grateful to you, for making my ticket booking easier.
Thanks for reaching us.