Hello.
user
Hello. How may I best support you today?
assistant
 As I am a scientist, I want to attend science festival with my students at Seattle. Can you do the reservation?
user
Sure, please let me know your planned travelling dates?
assistant
Dates are 02/01 and 02/03.
user
Please forward your travelling airport codes?
assistant
My airport codes are DFW-SEA.
user
May I know your name?
assistant
Donna Evans here.
user
There are no flights found with the given details.
assistant
No problem, Thank you.
user
Thank you for  contacting us.
assistant