Hi,.
Hello, how can I suggest you?
I want to travel from  Boston to Houston.
 Please, could you make sure your airport codes and travelling dates?
My journey dates are from dec/28 to dec/30. My airport codes are MA-BOS to TX-IAH. I require single connection within the price limit of 200.
Thank you for your detailed information, May I know your name please for further booking?
I am Garry Allen.
OK, please wait for a moment, I let you know about availability of flight.
OK>.
I apologize to inform you that, there is no flight available according to your request.
 OK, thank you for your service.
Thank you, have a good day.