Hello. I am Dorothy Mitchell.
Hello, how can I assist you today?
  I am planning to attend my sister wedding at IL-ORD with my family.
OK.
 Can you book a  ticket from WA-SEA?
Sure, I can book a ticket for you. To search a flight for you, I need your planned travel dates. So, please mention here?
My travel dates are 07/11 and 07/13.
Spirit airline plane is available on your specified travel dates with a fare of 100 only. Would you like me to proceed to book this flight?
Please ensure that Spirit flight is a direct flight.
Sorry, no direct flights are available in Spirit airlines.
Ok, thank you for your response.
Thanks for connecting with us, hope to serve you better next time.