Hello. Myself Frank Hill.
Hello. How can I assist you?
I would like to meet my sister at Washington, will you help me in booking the flight ticket from LGA to IAD?
  Sure, I will help you in booking the ticket. May I know your travelling dates please?
My travelling dates are Aug 12 and Aug 14.
May I know your connection limit?
I need a flight with single connection.
 Do you have any class preference?
I am comfortable with any class.
Sorry to inform you that no connecting flights were available on your travel dates.
Ok, not an issue. Thank you for your information.
 Thank you for availing us.