Hello. I am Dennis Phillips.
user
Hello Dennis!. How you doing?
assistant
I want to visit a gum wall at Seattle, can you please book a ticket?
user
Definitely. Could you please provide your source and destination?
assistant
Sure, my source CO-DEN  and destination WA-SEA. I am fly out on 09/07 and return on 09/09.
user
Thank you for the reservation. Give me some time to check the availability.
assistant
Ok.
user
Much obliged for your patience. Sorry for trouble, no flights are found based on your requirements. Thank you for choosing us!.
assistant