Hello. I am Ronald Lopez.
Hello,how may I abet you today?
I am  planning to celebrate my brother's birthday at Houston, can you please help me in booking?
Sure, when are you planning to travel?
I will start on 12/20 and return on 12/22.
Please share you source and destination airport codes?
My take off airport code is New York, LGA and landing airport code is Houston, IAH.
Do you need any halt in between the journey?
Yes, I need a halt.
Thank you for your details, I regret that there are no flights available with the given information. Thank you.