Hi.
Hello. How may I assist you today?
 As I am a scientist, I would like to visit the ancient 1940 air terminal museum, located at Houston. Can you please help me in booking?
Sure, please provide me your journey dates.
My journey dates are from 04/13 to 04/15.
May I know your travel airport codes?
My airport codes are from DCA to HOU.
May I know your name to proceed further?
I am Karen Thompson.
Sorry, I could not find any flight with your travel dates.
Ok, thank you.
It's my pleasure, have a safe journey.