Hello.
user
Hello, how may I serve you?
assistant
 As I am a scientist, I want to attend science festival with my students at Detroit. Can you do the reservation?
user
Sure, airport codes please?
assistant
My airport codes are SEA-DTW.
user
When did you planned to travel?
assistant
Dates are 04/27 and 04/29.
user
Please wait.
assistant
Ok.
user
May I know your name please?
assistant
Ronald Hill here.
user
Sorry, no flights found based on your requested dates.
assistant
No problem, I will check with another airline.
user
Thanks for reaching us.
assistant
Thank you.
user