Hello.
user
Hello. What type of service you are excepting from us?
assistant
 I am Anna Phillips want to book  a ticket to WA-SEA to meet my cousins.
user
Sure, I will help you with that. May I know your planned trip dates?
assistant
My trip dates are 05/19 and 05/21.
user
Ok, please provide me your source code.
assistant
I will depart from CA-LAX.
user
Ok, please wait for a while.
assistant
Ok.
user
Sorry to say that, there are no flight's based on your travelling dates.
assistant
Thank you for your help.
user
Thank you for reaching us.
assistant