Hi.
user
Hello. How may I assist you?
assistant
Anthony Phillips here. My airport codes for boarding the flight are SEA to IAD. Can you reserve a flight ticket?
user
Sure, could please provide you travelling dates.
assistant
Ok, my travel dates for the journey would be from 05/04 to 05/06. My price limit is less than 500.
user
I am very sorry to say,  there is no flight on your route.
assistant
Ok, not a problem. I will search with another airlines. Thank you.
user
Thank you for contacting us.
assistant